23864971 has 4 divisors (see below), whose sum is σ = 25700752. Its totient is φ = 22029192.

The previous prime is 23864921. The next prime is 23864977. The reversal of 23864971 is 17946832.

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 23864971 - 2⁷ = 23864843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23864977) 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, 917871 + ... + 917896.

It is an arithmetic number, because the mean of its divisors is an integer number (6425188).

Almost surely, 2^23864971 is an apocalyptic number.

23864971 is a deficient number, since it is larger than the sum of its proper divisors (1835781).

23864971 is a wasteful number, since it uses less digits than its factorization.

23864971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835780.

The product of its digits is 72576, while the sum is 40.

The square root of 23864971 is about 4885.1787070690. The cubic root of 23864971 is about 287.9079365910.

The spelling of 23864971 in words is "twenty-three million, eight hundred sixty-four thousand, nine hundred seventy-one".