79655911 has 4 divisors (see below), whose sum is σ = 79790832. Its totient is φ = 79520992.

The previous prime is 79655893. The next prime is 79655941. The reversal of 79655911 is 11955697.

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 79655911 - 2⁵ = 79655879 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 (79655941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66571 + ... + 67756.

It is an arithmetic number, because the mean of its divisors is an integer number (19947708).

Almost surely, 2^79655911 is an apocalyptic number.

79655911 is a deficient number, since it is larger than the sum of its proper divisors (134921).

79655911 is a wasteful number, since it uses less digits than its factorization.

79655911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134920.

The product of its digits is 85050, while the sum is 43.

The square root of 79655911 is about 8925.0160223946. The cubic root of 79655911 is about 430.2682857941.

The spelling of 79655911 in words is "seventy-nine million, six hundred fifty-five thousand, nine hundred eleven".