79899599 has 8 divisors (see below), whose sum is σ = 86167872. Its totient is φ = 73648800.

The previous prime is 79899593. The next prime is 79899601. The reversal of 79899599 is 99599897.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79899599 - 2⁴ = 79899583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79899593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6074 + ... + 14024.

It is an arithmetic number, because the mean of its divisors is an integer number (10770984).

Almost surely, 2^79899599 is an apocalyptic number.

79899599 is a deficient number, since it is larger than the sum of its proper divisors (6268273).

79899599 is a wasteful number, since it uses less digits than its factorization.

79899599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8737.

The product of its digits is 16533720, while the sum is 65.

The square root of 79899599 is about 8938.6575614015. The cubic root of 79899599 is about 430.7066063814.

The spelling of 79899599 in words is "seventy-nine million, eight hundred ninety-nine thousand, five hundred ninety-nine".