79399115 has 4 divisors (see below), whose sum is σ = 95278944. Its totient is φ = 63519288.

The previous prime is 79399097. The next prime is 79399123. The reversal of 79399115 is 51199397.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 79399115 - 2⁶ = 79399051 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7939907 + ... + 7939916.

It is an arithmetic number, because the mean of its divisors is an integer number (23819736).

Almost surely, 2^79399115 is an apocalyptic number.

79399115 is a deficient number, since it is larger than the sum of its proper divisors (15879829).

79399115 is a wasteful number, since it uses less digits than its factorization.

79399115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15879828.

The product of its digits is 76545, while the sum is 44.

The square root of 79399115 is about 8910.6181042619. The cubic root of 79399115 is about 429.8054194446.

The spelling of 79399115 in words is "seventy-nine million, three hundred ninety-nine thousand, one hundred fifteen".