79697115 has 40 divisors (see below), whose sum is σ = 150398160. Its totient is φ = 40264128.

The previous prime is 79697113. The next prime is 79697119. The reversal of 79697115 is 51179697.

It is not a de Polignac number, because 79697115 - 2¹ = 79697113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (79697113) 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 39 ways as a sum of consecutive naturals, for example, 2517 + ... + 12873.

It is an arithmetic number, because the mean of its divisors is an integer number (3759954).

Almost surely, 2^79697115 is an apocalyptic number.

79697115 is a deficient number, since it is larger than the sum of its proper divisors (70701045).

79697115 is a wasteful number, since it uses less digits than its factorization.

79697115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10393 (or 10384 counting only the distinct ones).

The product of its digits is 119070, while the sum is 45.

The square root of 79697115 is about 8927.3240671547. The cubic root of 79697115 is about 430.3424619945.

The spelling of 79697115 in words is "seventy-nine million, six hundred ninety-seven thousand, one hundred fifteen".