716256631 has 8 divisors (see below), whose sum is σ = 759732480. Its totient is φ = 672930048.

The previous prime is 716256613. The next prime is 716256647. The reversal of 716256631 is 136652617.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-716256631 is a prime.

It is a super-2 number, since 2×716256631² = 1026047122902940322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (716256601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27351 + ... + 46696.

It is an arithmetic number, because the mean of its divisors is an integer number (94966560).

Almost surely, 2^716256631 is an apocalyptic number.

716256631 is a deficient number, since it is larger than the sum of its proper divisors (43475849).

716256631 is a wasteful number, since it uses less digits than its factorization.

716256631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74633.

The product of its digits is 45360, while the sum is 37.

The square root of 716256631 is about 26762.9712662851. The cubic root of 716256631 is about 894.7249577751.

The spelling of 716256631 in words is "seven hundred sixteen million, two hundred fifty-six thousand, six hundred thirty-one".