79936520 has 16 divisors (see below), whose sum is σ = 179857260. Its totient is φ = 31974592.

The previous prime is 79936517. The next prime is 79936529. The reversal of 79936520 is 2563997.

It can be written as a sum of positive squares in 2 ways, for example, as 78251716 + 1684804 = 8846^2 + 1298^2 .

It is not an unprimeable number, because it can be changed into a prime (79936529) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 999167 + ... + 999246.

Almost surely, 2^79936520 is an apocalyptic number.

It is an amenable number.

79936520 is an abundant number, since it is smaller than the sum of its proper divisors (99920740).

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

79936520 is a wasteful number, since it uses less digits than its factorization.

79936520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998424 (or 1998420 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 41.

The square root of 79936520 is about 8940.7225658780. The cubic root of 79936520 is about 430.7729382530.

The spelling of 79936520 in words is "seventy-nine million, nine hundred thirty-six thousand, five hundred twenty".