811926812 has 12 divisors (see below), whose sum is σ = 1421221536. Its totient is φ = 405863520.

The previous prime is 811926803. The next prime is 811926821. The reversal of 811926812 is 218629118.

It is an interprime number because it is at equal distance from previous prime (811926803) and next prime (811926821).

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 4889 + ... + 40592.

It is an arithmetic number, because the mean of its divisors is an integer number (118435128).

Almost surely, 2^811926812 is an apocalyptic number.

It is an amenable number.

811926812 is a deficient number, since it is larger than the sum of its proper divisors (609294724).

811926812 is a wasteful number, since it uses less digits than its factorization.

811926812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49948 (or 49946 counting only the distinct ones).

The product of its digits is 13824, while the sum is 38.

The square root of 811926812 is about 28494.3294709667. The cubic root of 811926812 is about 932.9083088045.

The spelling of 811926812 in words is "eight hundred eleven million, nine hundred twenty-six thousand, eight hundred twelve".