23979619 has 2 divisors, whose sum is σ = 23979620. Its totient is φ = 23979618.

The previous prime is 23979583. The next prime is 23979623. The reversal of 23979619 is 91697932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23979619 - 2¹⁵ = 23946851 is a prime.

It is a super-2 number, since 2×23979619² = 1150044254770322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23979689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11989809 + 11989810.

It is an arithmetic number, because the mean of its divisors is an integer number (11989810).

Almost surely, 2^23979619 is an apocalyptic number.

23979619 is a deficient number, since it is larger than the sum of its proper divisors (1).

23979619 is an equidigital number, since it uses as much as digits as its factorization.

23979619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 183708, while the sum is 46.

The square root of 23979619 is about 4896.8989166614. The cubic root of 23979619 is about 288.3682395806.

The spelling of 23979619 in words is "twenty-three million, nine hundred seventy-nine thousand, six hundred nineteen".