23616491 has 2 divisors, whose sum is σ = 23616492. Its totient is φ = 23616490.

The previous prime is 23616443. The next prime is 23616499. The reversal of 23616491 is 19461632.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23616491 - 2⁶ = 23616427 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23616499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11808245 + 11808246.

It is an arithmetic number, because the mean of its divisors is an integer number (11808246).

Almost surely, 2^23616491 is an apocalyptic number.

23616491 is a deficient number, since it is larger than the sum of its proper divisors (1).

23616491 is an equidigital number, since it uses as much as digits as its factorization.

23616491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 32.

The square root of 23616491 is about 4859.6801335067. The cubic root of 23616491 is about 286.9052243238.

The spelling of 23616491 in words is "twenty-three million, six hundred sixteen thousand, four hundred ninety-one".