712856 has 8 divisors (see below), whose sum is σ = 1336620. Its totient is φ = 356424.

The previous prime is 712847. The next prime is 712883. The reversal of 712856 is 658217.

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

712856 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44546 + ... + 44561.

2⁷¹²⁸⁵⁶ is an apocalyptic number.

It is an amenable number.

712856 is a deficient number, since it is larger than the sum of its proper divisors (623764).

712856 is a wasteful number, since it uses less digits than its factorization.

712856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89113 (or 89109 counting only the distinct ones).

The product of its digits is 3360, while the sum is 29.

The square root of 712856 is about 844.3080006727. The cubic root of 712856 is about 89.3306724288.

The spelling of 712856 in words is "seven hundred twelve thousand, eight hundred fifty-six".