23979137 has 16 divisors (see below), whose sum is σ = 30237312. Its totient is φ = 18506880.

The previous prime is 23979119. The next prime is 23979139. The reversal of 23979137 is 73197932.

It is not a de Polignac number, because 23979137 - 2⁸ = 23978881 is a prime.

It is a super-2 number, since 2×23979137² = 1149998022529538, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a junction number, because it is equal to n+sod(n) for n = 23979094 and 23979103.

It is not an unprimeable number, because it can be changed into a prime (23979139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 518 + ... + 6944.

It is an arithmetic number, because the mean of its divisors is an integer number (1889832).

Almost surely, 2^23979137 is an apocalyptic number.

It is an amenable number.

23979137 is a deficient number, since it is larger than the sum of its proper divisors (6258175).

23979137 is a wasteful number, since it uses less digits than its factorization.

23979137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6488.

The product of its digits is 71442, while the sum is 41.

The square root of 23979137 is about 4896.8497015939. The cubic root of 23979137 is about 288.3663074618.

The spelling of 23979137 in words is "twenty-three million, nine hundred seventy-nine thousand, one hundred thirty-seven".