904738923 has 64 divisors (see below), whose sum is σ = 1509580800. Its totient is φ = 530784000.

The previous prime is 904738909. The next prime is 904738931. The reversal of 904738923 is 329837409.

It is a happy number.

904738923 is a `hidden beast` number, since 90 + 473 + 8 + 92 + 3 = 666.

It is not a de Polignac number, because 904738923 - 2⁹ = 904738411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (904738943) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2325613 + ... + 2326001.

It is an arithmetic number, because the mean of its divisors is an integer number (23587200).

Almost surely, 2^904738923 is an apocalyptic number.

904738923 is a deficient number, since it is larger than the sum of its proper divisors (604841877).

904738923 is a wasteful number, since it uses less digits than its factorization.

904738923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641 (or 635 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 904738923 is about 30078.8783534227. The cubic root of 904738923 is about 967.1810041433.

The spelling of 904738923 in words is "nine hundred four million, seven hundred thirty-eight thousand, nine hundred twenty-three".