79115538 has 64 divisors (see below), whose sum is σ = 174493440. Its totient is φ = 23831808.

The previous prime is 79115537. The next prime is 79115551. The reversal of 79115538 is 83551197.

It is a junction number, because it is equal to n+sod(n) for n = 79115496 and 79115505.

It is not an unprimeable number, because it can be changed into a prime (79115537) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 211920 + ... + 212292.

It is an arithmetic number, because the mean of its divisors is an integer number (2726460).

Almost surely, 2^79115538 is an apocalyptic number.

79115538 is an abundant number, since it is smaller than the sum of its proper divisors (95377902).

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

79115538 is a wasteful number, since it uses less digits than its factorization.

79115538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483.

The product of its digits is 37800, while the sum is 39.

The square root of 79115538 is about 8894.6915629492. The cubic root of 79115538 is about 429.2931201861.

The spelling of 79115538 in words is "seventy-nine million, one hundred fifteen thousand, five hundred thirty-eight".