79154923 has 2 divisors, whose sum is σ = 79154924. Its totient is φ = 79154922.

The previous prime is 79154903. The next prime is 79154947. The reversal of 79154923 is 32945197.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79154923 - 2²⁵ = 45600491 is a prime.

It is not a weakly prime, because it can be changed into another prime (79154903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39577461 + 39577462.

It is an arithmetic number, because the mean of its divisors is an integer number (39577462).

Almost surely, 2^79154923 is an apocalyptic number.

79154923 is a deficient number, since it is larger than the sum of its proper divisors (1).

79154923 is an equidigital number, since it uses as much as digits as its factorization.

79154923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 40.

The square root of 79154923 is about 8896.9052484558. The cubic root of 79154923 is about 429.3643447314.

The spelling of 79154923 in words is "seventy-nine million, one hundred fifty-four thousand, nine hundred twenty-three".