23456579 has 4 divisors (see below), whose sum is σ = 23777976. Its totient is φ = 23135184.

The previous prime is 23456569. The next prime is 23456597. The reversal of 23456579 is 97565432.

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

It is a cyclic number.

It is not a de Polignac number, because 23456579 - 2²⁴ = 6679363 is a prime.

It is a super-2 number, since 2×23456579² = 1100422196766482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23456509) 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, 160589 + ... + 160734.

It is an arithmetic number, because the mean of its divisors is an integer number (5944494).

Almost surely, 2^23456579 is an apocalyptic number.

23456579 is a deficient number, since it is larger than the sum of its proper divisors (321397).

23456579 is an equidigital number, since it uses as much as digits as its factorization.

23456579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321396.

The product of its digits is 226800, while the sum is 41.

The square root of 23456579 is about 4843.1992525602. The cubic root of 23456579 is about 286.2561929211.

The spelling of 23456579 in words is "twenty-three million, four hundred fifty-six thousand, five hundred seventy-nine".