79685923 has 4 divisors (see below), whose sum is σ = 81539128. Its totient is φ = 77832720.

The previous prime is 79685917. The next prime is 79685929. The reversal of 79685923 is 32958697.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (79685917) and next prime (79685929).

It is a cyclic number.

It is not a de Polignac number, because 79685923 - 2⁵ = 79685891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79685929) 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, 926538 + ... + 926623.

It is an arithmetic number, because the mean of its divisors is an integer number (20384782).

Almost surely, 2^79685923 is an apocalyptic number.

79685923 is a deficient number, since it is larger than the sum of its proper divisors (1853205).

79685923 is a wasteful number, since it uses less digits than its factorization.

79685923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1853204.

The product of its digits is 816480, while the sum is 49.

The square root of 79685923 is about 8926.6972055739. The cubic root of 79685923 is about 430.3223164794.

It can be divided in two parts, 79685 and 923, that added together give a palindrome (80608).

The spelling of 79685923 in words is "seventy-nine million, six hundred eighty-five thousand, nine hundred twenty-three".