79251764 has 12 divisors (see below), whose sum is σ = 138776484. Its totient is φ = 39601344.

The previous prime is 79251737. The next prime is 79251787. The reversal of 79251764 is 46715297.

It can be written as a sum of positive squares in 2 ways, for example, as 55651600 + 23600164 = 7460^2 + 4858^2 .

It is a super-2 number, since 2×79251764² = 12561684194223392, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2474 + ... + 12830.

It is an arithmetic number, because the mean of its divisors is an integer number (11564707).

Almost surely, 2^79251764 is an apocalyptic number.

It is an amenable number.

79251764 is a deficient number, since it is larger than the sum of its proper divisors (59524720).

79251764 is a wasteful number, since it uses less digits than its factorization.

79251764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12274 (or 12272 counting only the distinct ones).

The product of its digits is 105840, while the sum is 41.

The square root of 79251764 is about 8902.3459829418. The cubic root of 79251764 is about 429.5393733360.

The spelling of 79251764 in words is "seventy-nine million, two hundred fifty-one thousand, seven hundred sixty-four".