831016812 has 24 divisors (see below), whose sum is σ = 1967982016. Its totient is φ = 272870928.

The previous prime is 831016811. The next prime is 831016819. The reversal of 831016812 is 218610138.

It is a self number, because there is not a number n which added to its sum of digits gives 831016812.

It is not an unprimeable number, because it can be changed into a prime (831016811) 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, 515998 + ... + 517605.

Almost surely, 2^831016812 is an apocalyptic number.

It is an amenable number.

831016812 is an abundant number, since it is smaller than the sum of its proper divisors (1136965204).

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

831016812 is a wasteful number, since it uses less digits than its factorization.

831016812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033677 (or 1033675 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 831016812 is about 28827.3622102335. The cubic root of 831016812 is about 940.1632476397.

The spelling of 831016812 in words is "eight hundred thirty-one million, sixteen thousand, eight hundred twelve".