79738660 has 24 divisors (see below), whose sum is σ = 169336440. Its totient is φ = 31536384.

The previous prime is 79738657. The next prime is 79738679. The reversal of 79738660 is 6683797.

It can be written as a sum of positive squares in 4 ways, for example, as 207936 + 79530724 = 456^2 + 8918^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 79738660.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20619 + ... + 24178.

It is an arithmetic number, because the mean of its divisors is an integer number (7055685).

Almost surely, 2^79738660 is an apocalyptic number.

It is an amenable number.

79738660 is an abundant number, since it is smaller than the sum of its proper divisors (89597780).

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

79738660 is a wasteful number, since it uses less digits than its factorization.

79738660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44895 (or 44893 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 79738660 is about 8929.6506090664. The cubic root of 79738660 is about 430.4172261892.

The spelling of 79738660 in words is "seventy-nine million, seven hundred thirty-eight thousand, six hundred sixty".