23258979 has 6 divisors (see below), whose sum is σ = 33596316. Its totient is φ = 15505980.

The previous prime is 23258969. The next prime is 23258999. The reversal of 23258979 is 97985232.

It is not a de Polignac number, because 23258979 - 2¹⁵ = 23226211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23258909) 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, 1292157 + ... + 1292174.

It is an arithmetic number, because the mean of its divisors is an integer number (5599386).

Almost surely, 2^23258979 is an apocalyptic number.

23258979 is a deficient number, since it is larger than the sum of its proper divisors (10337337).

23258979 is a wasteful number, since it uses less digits than its factorization.

23258979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2584337 (or 2584334 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 23258979 is about 4822.7563695464. The cubic root of 23258979 is about 285.4501105416.

The spelling of 23258979 in words is "twenty-three million, two hundred fifty-eight thousand, nine hundred seventy-nine".