79109723 has 16 divisors (see below), whose sum is σ = 100928256. Its totient is φ = 60207840.

The previous prime is 79109699. The next prime is 79109743. The reversal of 79109723 is 32790197.

It is not a de Polignac number, because 79109723 - 2⁶ = 79109659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79109743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8636 + ... + 15257.

It is an arithmetic number, because the mean of its divisors is an integer number (6308016).

Almost surely, 2^79109723 is an apocalyptic number.

79109723 is a deficient number, since it is larger than the sum of its proper divisors (21818533).

79109723 is a wasteful number, since it uses less digits than its factorization.

79109723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23954.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 79109723 is about 8894.3646765803. The cubic root of 79109723 is about 429.2826022325.

The spelling of 79109723 in words is "seventy-nine million, one hundred nine thousand, seven hundred twenty-three".