812008206 has 32 divisors (see below), whose sum is σ = 1899436800. Its totient is φ = 256423320.

The previous prime is 812008201. The next prime is 812008217. The reversal of 812008206 is 602800218.

It is a super-2 number, since 2×812008206² = 1318714653222676872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 812008206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812008201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394690 + ... + 396741.

It is an arithmetic number, because the mean of its divisors is an integer number (59357400).

Almost surely, 2^812008206 is an apocalyptic number.

812008206 is an abundant number, since it is smaller than the sum of its proper divisors (1087428594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

812008206 is a wasteful number, since it uses less digits than its factorization.

812008206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791461 (or 791455 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 812008206 is about 28495.7576842589. The cubic root of 812008206 is about 932.9394818120.

The spelling of 812008206 in words is "eight hundred twelve million, eight thousand, two hundred six".