79607999 has 4 divisors (see below), whose sum is σ = 79661136. Its totient is φ = 79554864.

The previous prime is 79607981. The next prime is 79608013. The reversal of 79607999 is 99970697.

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 79607999 - 2²⁰ = 78559423 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 (79607909) 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, 24254 + ... + 27339.

It is an arithmetic number, because the mean of its divisors is an integer number (19915284).

Almost surely, 2^79607999 is an apocalyptic number.

79607999 is a deficient number, since it is larger than the sum of its proper divisors (53137).

79607999 is a wasteful number, since it uses less digits than its factorization.

79607999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53136.

The product of its (nonzero) digits is 1928934, while the sum is 56.

The square root of 79607999 is about 8922.3314778145. The cubic root of 79607999 is about 430.1820015563.

The spelling of 79607999 in words is "seventy-nine million, six hundred seven thousand, nine hundred ninety-nine".