79923599 has 8 divisors (see below), whose sum is σ = 91423008. Its totient is φ = 68444640.

The previous prime is 79923593. The next prime is 79923601. The reversal of 79923599 is 99532997.

It is a Cunningham number, because it is equal to 8940²-1.

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 79923599 - 2⁸ = 79923343 is a prime.

It is a super-3 number, since 3×79923599³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 79923599.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79923593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4469 + ... + 13409.

It is an arithmetic number, because the mean of its divisors is an integer number (11427876).

Almost surely, 2^79923599 is an apocalyptic number.

79923599 is a deficient number, since it is larger than the sum of its proper divisors (11499409).

79923599 is a wasteful number, since it uses less digits than its factorization.

79923599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10225.

The product of its digits is 1377810, while the sum is 53.

The square root of 79923599 is about 8939.9999440716. Note that the first 4 decimals coincide. The cubic root of 79923599 is about 430.7497268470.

The spelling of 79923599 in words is "seventy-nine million, nine hundred twenty-three thousand, five hundred ninety-nine".