809923004 has 12 divisors (see below), whose sum is σ = 1546216728. Its totient is φ = 368146800.

The previous prime is 809922947. The next prime is 809923033. The reversal of 809923004 is 400329908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9203627 + ... + 9203714.

It is an arithmetic number, because the mean of its divisors is an integer number (128851394).

Almost surely, 2^809923004 is an apocalyptic number.

It is an amenable number.

809923004 is a deficient number, since it is larger than the sum of its proper divisors (736293724).

809923004 is a wasteful number, since it uses less digits than its factorization.

809923004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18407356 (or 18407354 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 809923004 is about 28459.1462275311. The cubic root of 809923004 is about 932.1402144954.

The spelling of 809923004 in words is "eight hundred nine million, nine hundred twenty-three thousand, four".