812013736 has 32 divisors (see below), whose sum is σ = 1578176640. Its totient is φ = 391425408.

The previous prime is 812013707. The next prime is 812013737. The reversal of 812013736 is 637310218.

It is a junction number, because it is equal to n+sod(n) for n = 812013698 and 812013707.

It is not an unprimeable number, because it can be changed into a prime (812013737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9076 + ... + 41308.

It is an arithmetic number, because the mean of its divisors is an integer number (49318020).

Almost surely, 2^812013736 is an apocalyptic number.

It is an amenable number.

812013736 is a deficient number, since it is larger than the sum of its proper divisors (766162904).

812013736 is a wasteful number, since it uses less digits than its factorization.

812013736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32353 (or 32349 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 812013736 is about 28495.8547160811. The cubic root of 812013736 is about 932.9415996656.

The spelling of 812013736 in words is "eight hundred twelve million, thirteen thousand, seven hundred thirty-six".