79088399 has 4 divisors (see below), whose sum is σ = 85172136. Its totient is φ = 73004664.

The previous prime is 79088377. The next prime is 79088411. The reversal of 79088399 is 99388097.

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 79088399 - 2²⁰ = 78039823 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79088399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79088299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3041849 + ... + 3041874.

It is an arithmetic number, because the mean of its divisors is an integer number (21293034).

Almost surely, 2^79088399 is an apocalyptic number.

79088399 is a deficient number, since it is larger than the sum of its proper divisors (6083737).

79088399 is a wasteful number, since it uses less digits than its factorization.

79088399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6083736.

The product of its (nonzero) digits is 979776, while the sum is 53.

The square root of 79088399 is about 8893.1658592427. The cubic root of 79088399 is about 429.2440277713.

The spelling of 79088399 in words is "seventy-nine million, eighty-eight thousand, three hundred ninety-nine".