811924904 has 64 divisors (see below), whose sum is σ = 1782000000. Its totient is φ = 346665984.

The previous prime is 811924871. The next prime is 811924957. The reversal of 811924904 is 409429118.

811924904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1231727 + ... + 1232385.

It is an arithmetic number, because the mean of its divisors is an integer number (27843750).

Almost surely, 2^811924904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 811924904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (891000000).

811924904 is an abundant number, since it is smaller than the sum of its proper divisors (970075096).

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

811924904 is a wasteful number, since it uses less digits than its factorization.

811924904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135 (or 1117 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 811924904 is about 28494.2959906013. The cubic root of 811924904 is about 932.9075780365.

The spelling of 811924904 in words is "eight hundred eleven million, nine hundred twenty-four thousand, nine hundred four".