The official Soviet death toll for the accident stood as just 31, despite its status as the worst nuclear disaster in history.
The communist party dismissed the program as "an ideological tool" and called on the government to file a libel case against HBO.
Pro-Kremlin media have criticized the series, with some describing it as pro-western propaganda.
"Most of the people say they decided to book after seeing this show. It's almost as though they watch it and then jump on a plane over."
Many compared the harrowing five-part miniseries favorably to HBO's other big show this year, "Game of Thrones."
Immediately after the 1986 Chernobyl disaster, familiar conspiracy theories popped up among survivors.
Despite being one of the most radioactive areas on Earth, the Chernobyl Exclusion Zone attracts thousands of visitors each year.
Some of the first responders' stories were not told until years after the nuclear reactor's meltdown.
Humans abandoned the area in 1986, following what is generally regarded as the worst nuclear disaster in history.
The controversial floating power plant will be towed through the Baltic Sea and narrow European straits to get to the Arctic.
A new project to fill the 1,000-mile exclusion zone with solar panels is expected to be commissioned next month.
An American NGO sterilized about 400 stray dogs and cats that live around the former nuclear power plant.
The head of Russia's Radiation, Chemical and Biological Protection Troops says the new robots will be better equipped than people to operate in deadly environments.
Government sites, banks, the postal service, Kiev's airport and the Chernobyl nuclear plant were all hit by the cyberattack.
In a yet to be published paper, Dr. Roberto Lucchini of the World Trade Center Health Program compared the findings of health programs established around the world in the aftermath of major environmental disasters.
The Russian president called the disaster "a harsh lesson to humanity."