79725123 has 6 divisors (see below), whose sum is σ = 115158524. Its totient is φ = 53150076.

The previous prime is 79725097. The next prime is 79725127. The reversal of 79725123 is 32152797.

79725123 is a `hidden beast` number, since 79 + 72 + 512 + 3 = 666.

It is not a de Polignac number, because 79725123 - 2¹² = 79721027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79725127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4429165 + ... + 4429182.

Almost surely, 2^79725123 is an apocalyptic number.

79725123 is a deficient number, since it is larger than the sum of its proper divisors (35433401).

79725123 is a wasteful number, since it uses less digits than its factorization.

79725123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8858353 (or 8858350 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 79725123 is about 8928.8925965094. The cubic root of 79725123 is about 430.3928679179.

The spelling of 79725123 in words is "seventy-nine million, seven hundred twenty-five thousand, one hundred twenty-three".