23979167 has 2 divisors, whose sum is σ = 23979168. Its totient is φ = 23979166.

The previous prime is 23979149. The next prime is 23979187. The reversal of 23979167 is 76197932.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23979167 - 2¹² = 23975071 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23979187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11989583 + 11989584.

It is an arithmetic number, because the mean of its divisors is an integer number (11989584).

Almost surely, 2^23979167 is an apocalyptic number.

23979167 is a deficient number, since it is larger than the sum of its proper divisors (1).

23979167 is an equidigital number, since it uses as much as digits as its factorization.

23979167 is an evil number, because the sum of its binary digits is even.

The product of its digits is 142884, while the sum is 44.

The square root of 23979167 is about 4896.8527647868. The cubic root of 23979167 is about 288.3664277189.

The spelling of 23979167 in words is "twenty-three million, nine hundred seventy-nine thousand, one hundred sixty-seven".