79740115 has 64 divisors (see below), whose sum is σ = 127491840. Its totient is φ = 46725120.

The previous prime is 79740097. The next prime is 79740119. The reversal of 79740115 is 51104797.

It is not a de Polignac number, because 79740115 - 2⁵ = 79740083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79740119) 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 63 ways as a sum of consecutive naturals, for example, 1307185 + ... + 1307245.

It is an arithmetic number, because the mean of its divisors is an integer number (1992060).

Almost surely, 2^79740115 is an apocalyptic number.

79740115 is a deficient number, since it is larger than the sum of its proper divisors (47751725).

79740115 is a wasteful number, since it uses less digits than its factorization.

79740115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 34.

The square root of 79740115 is about 8929.7320788476. The cubic root of 79740115 is about 430.4198441299.

The spelling of 79740115 in words is "seventy-nine million, seven hundred forty thousand, one hundred fifteen".