712679856 has 80 divisors (see below), whose sum is σ = 2130816000. Its totient is φ = 201037824.

The previous prime is 712679839. The next prime is 712679861. The reversal of 712679856 is 658976217.

It is a junction number, because it is equal to n+sod(n) for n = 712679799 and 712679808.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13120 + ... + 39968.

It is an arithmetic number, because the mean of its divisors is an integer number (26635200).

Almost surely, 2^712679856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 712679856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1065408000).

712679856 is an abundant number, since it is smaller than the sum of its proper divisors (1418136144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

712679856 is a wasteful number, since it uses less digits than its factorization.

712679856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26946 (or 26940 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 51.

The square root of 712679856 is about 26696.0644290502. The cubic root of 712679856 is about 893.2331406654.

The spelling of 712679856 in words is "seven hundred twelve million, six hundred seventy-nine thousand, eight hundred fifty-six".