79515099 has 12 divisors (see below), whose sum is σ = 114985416. Its totient is φ = 52949952.

The previous prime is 79515097. The next prime is 79515143. The reversal of 79515099 is 99051597.

It is not a de Polignac number, because 79515099 - 2¹ = 79515097 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (79515091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4272 + ... + 13314.

It is an arithmetic number, because the mean of its divisors is an integer number (9582118).

Almost surely, 2^79515099 is an apocalyptic number.

79515099 is a deficient number, since it is larger than the sum of its proper divisors (35470317).

79515099 is a wasteful number, since it uses less digits than its factorization.

79515099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10026 (or 10023 counting only the distinct ones).

The product of its (nonzero) digits is 127575, while the sum is 45.

The square root of 79515099 is about 8917.1239197400. The cubic root of 79515099 is about 430.0146001893.

The spelling of 79515099 in words is "seventy-nine million, five hundred fifteen thousand, ninety-nine".