23879913 has 4 divisors (see below), whose sum is σ = 31839888. Its totient is φ = 15919940.

The previous prime is 23879899. The next prime is 23879923. The reversal of 23879913 is 31997832.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23879913 - 2⁴ = 23879897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23879923) 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, 3979983 + ... + 3979988.

It is an arithmetic number, because the mean of its divisors is an integer number (7959972).

Almost surely, 2^23879913 is an apocalyptic number.

It is an amenable number.

23879913 is a deficient number, since it is larger than the sum of its proper divisors (7959975).

23879913 is an equidigital number, since it uses as much as digits as its factorization.

23879913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7959974.

The product of its digits is 81648, while the sum is 42.

The square root of 23879913 is about 4886.7077874577. The cubic root of 23879913 is about 287.9680110111.

The spelling of 23879913 in words is "twenty-three million, eight hundred seventy-nine thousand, nine hundred thirteen".