23117958 has 24 divisors (see below), whose sum is σ = 50181768. Its totient is φ = 7691712.

The previous prime is 23117953. The next prime is 23117981. The reversal of 23117958 is 85971132.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23117953) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14110 + ... + 15662.

It is an arithmetic number, because the mean of its divisors is an integer number (2090907).

Almost surely, 2^23117958 is an apocalyptic number.

23117958 is an abundant number, since it is smaller than the sum of its proper divisors (27063810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23117958 is a wasteful number, since it uses less digits than its factorization.

23117958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2388 (or 2385 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 23117958 is about 4808.1137673728. The cubic root of 23117958 is about 284.8720385851.

The spelling of 23117958 in words is "twenty-three million, one hundred seventeen thousand, nine hundred fifty-eight".