812494912 has 14 divisors (see below), whose sum is σ = 1612294718. Its totient is φ = 406247424.

The previous prime is 812494901. The next prime is 812494919. The reversal of 812494912 is 219494218.

It can be written as a sum of positive squares in only one way, i.e., 805651456 + 6843456 = 28384^2 + 2616^2 .

It is not an unprimeable number, because it can be changed into a prime (812494919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6347553 + ... + 6347680.

Almost surely, 2^812494912 is an apocalyptic number.

It is an amenable number.

812494912 is a deficient number, since it is larger than the sum of its proper divisors (799799806).

812494912 is a wasteful number, since it uses less digits than its factorization.

812494912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12695245 (or 12695235 counting only the distinct ones).

The product of its digits is 41472, while the sum is 40.

The square root of 812494912 is about 28504.2963779147. The cubic root of 812494912 is about 933.1258414037.

The spelling of 812494912 in words is "eight hundred twelve million, four hundred ninety-four thousand, nine hundred twelve".