712639864 has 32 divisors (see below), whose sum is σ = 1417770000. Its totient is φ = 334656000.

The previous prime is 712639861. The next prime is 712639871. The reversal of 712639864 is 468936217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712639861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62614 + ... + 73114.

Almost surely, 2^712639864 is an apocalyptic number.

It is an amenable number.

712639864 is a deficient number, since it is larger than the sum of its proper divisors (705130136).

712639864 is a wasteful number, since it uses less digits than its factorization.

712639864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11023 (or 11019 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 712639864 is about 26695.3153942785. The cubic root of 712639864 is about 893.2164324396.

The spelling of 712639864 in words is "seven hundred twelve million, six hundred thirty-nine thousand, eight hundred sixty-four".