712256 has 28 divisors (see below), whose sum is σ = 1463040. Its totient is φ = 343680.

The previous prime is 712237. The next prime is 712279. The reversal of 712256 is 652217.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

712256 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 in 3 ways as a sum of consecutive naturals, for example, 1805 + ... + 2163.

2⁷¹²²⁵⁶ 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 712256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (731520).

712256 is an abundant number, since it is smaller than the sum of its proper divisors (750784).

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

712256 is a wasteful number, since it uses less digits than its factorization.

712256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402 (or 392 counting only the distinct ones).

The product of its digits is 840, while the sum is 23.

The square root of 712256 is about 843.9526053044. The cubic root of 712256 is about 89.3056026400.

It can be divided in two parts, 71225 and 6, that multiplied together give a triangular number (427350 = T₉₂₄).

The spelling of 712256 in words is "seven hundred twelve thousand, two hundred fifty-six".