79766911 has 4 divisors (see below), whose sum is σ = 91162192. Its totient is φ = 68371632.

The previous prime is 79766909. The next prime is 79766927. The reversal of 79766911 is 11966797.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11966797 = 61 ⋅196177.

It is not a de Polignac number, because 79766911 - 2¹ = 79766909 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 (79766971) 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, 5697630 + ... + 5697643.

It is an arithmetic number, because the mean of its divisors is an integer number (22790548).

Almost surely, 2^79766911 is an apocalyptic number.

79766911 is a deficient number, since it is larger than the sum of its proper divisors (11395281).

79766911 is a wasteful number, since it uses less digits than its factorization.

79766911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11395280.

The product of its digits is 142884, while the sum is 46.

The square root of 79766911 is about 8931.2323337824. The cubic root of 79766911 is about 430.4680517289.

The spelling of 79766911 in words is "seventy-nine million, seven hundred sixty-six thousand, nine hundred eleven".