79918967 has 4 divisors (see below), whose sum is σ = 81229176. Its totient is φ = 78608760.

The previous prime is 79918931. The next prime is 79918999. The reversal of 79918967 is 76981997.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76981997 = 43 ⋅1790279.

It is a cyclic number.

It is not a de Polignac number, because 79918967 - 2⁶ = 79918903 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 (79218967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 655013 + ... + 655134.

It is an arithmetic number, because the mean of its divisors is an integer number (20307294).

Almost surely, 2^79918967 is an apocalyptic number.

79918967 is a deficient number, since it is larger than the sum of its proper divisors (1310209).

79918967 is a wasteful number, since it uses less digits than its factorization.

79918967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310208.

The product of its digits is 1714608, while the sum is 56.

The square root of 79918967 is about 8939.7408799137. The cubic root of 79918967 is about 430.7414052695.

The spelling of 79918967 in words is "seventy-nine million, nine hundred eighteen thousand, nine hundred sixty-seven".