79731325 has 6 divisors (see below), whose sum is σ = 98866874. Its totient is φ = 63785040.

The previous prime is 79731313. The next prime is 79731359. The reversal of 79731325 is 52313797.

It can be written as a sum of positive squares in 3 ways, for example, as 3308761 + 76422564 = 1819^2 + 8742^2 .

It is not a de Polignac number, because 79731325 - 2⁵ = 79731293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1594602 + ... + 1594651.

Almost surely, 2^79731325 is an apocalyptic number.

It is an amenable number.

79731325 is a deficient number, since it is larger than the sum of its proper divisors (19135549).

79731325 is a wasteful number, since it uses less digits than its factorization.

79731325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3189263 (or 3189258 counting only the distinct ones).

The product of its digits is 39690, while the sum is 37.

The square root of 79731325 is about 8929.2398892627. The cubic root of 79731325 is about 430.4040280443.

The spelling of 79731325 in words is "seventy-nine million, seven hundred thirty-one thousand, three hundred twenty-five".