712439656 has 16 divisors (see below), whose sum is σ = 1406131200. Its totient is φ = 337471344.

The previous prime is 712439639. The next prime is 712439669. The reversal of 712439656 is 656934217.

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, 2343400 + ... + 2343703.

It is an arithmetic number, because the mean of its divisors is an integer number (87883200).

Almost surely, 2^712439656 is an apocalyptic number.

712439656 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

712439656 is a deficient number, since it is larger than the sum of its proper divisors (693691544).

712439656 is a wasteful number, since it uses less digits than its factorization.

712439656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4687128 (or 4687124 counting only the distinct ones).

The product of its digits is 272160, while the sum is 43.

The square root of 712439656 is about 26691.5652594598. The cubic root of 712439656 is about 893.1327782996.

The spelling of 712439656 in words is "seven hundred twelve million, four hundred thirty-nine thousand, six hundred fifty-six".