477634923 has 12 divisors (see below), whose sum is σ = 690199848. Its totient is φ = 318292800.

The previous prime is 477634909. The next prime is 477634931. The reversal of 477634923 is 329436774.

477634923 is a `hidden beast` number, since 4 + 7 + 7 + 634 + 9 + 2 + 3 = 666.

It is not a de Polignac number, because 477634923 - 2¹⁰ = 477633899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (477634903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15736 + ... + 34682.

It is an arithmetic number, because the mean of its divisors is an integer number (57516654).

Almost surely, 2^477634923 is an apocalyptic number.

477634923 is a deficient number, since it is larger than the sum of its proper divisors (212564925).

477634923 is a wasteful number, since it uses less digits than its factorization.

477634923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21754 (or 21751 counting only the distinct ones).

The product of its digits is 762048, while the sum is 45.

The square root of 477634923 is about 21854.8603976324. The cubic root of 477634923 is about 781.6854432008.

The spelling of 477634923 in words is "four hundred seventy-seven million, six hundred thirty-four thousand, nine hundred twenty-three".