923940172 has 12 divisors (see below), whose sum is σ = 1660595440. Its totient is φ = 449484336.

The previous prime is 923940161. The next prime is 923940181. The reversal of 923940172 is 271049329.

It is a Harshad number since it is a multiple of its sum of digits (37).

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, 3121272 + ... + 3121567.

Almost surely, 2^923940172 is an apocalyptic number.

It is an amenable number.

923940172 is a deficient number, since it is larger than the sum of its proper divisors (736655268).

923940172 is a wasteful number, since it uses less digits than its factorization.

923940172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6242880 (or 6242878 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 923940172 is about 30396.3841928608. The cubic root of 923940172 is about 973.9753151478.

The spelling of 923940172 in words is "nine hundred twenty-three million, nine hundred forty thousand, one hundred seventy-two".