23916647 has 2 divisors, whose sum is σ = 23916648. Its totient is φ = 23916646.

The previous prime is 23916631. The next prime is 23916661. The reversal of 23916647 is 74661932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23916647 - 2⁴ = 23916631 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23916647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23916617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11958323 + 11958324.

It is an arithmetic number, because the mean of its divisors is an integer number (11958324).

Almost surely, 2^23916647 is an apocalyptic number.

23916647 is a deficient number, since it is larger than the sum of its proper divisors (1).

23916647 is an equidigital number, since it uses as much as digits as its factorization.

23916647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 38.

The square root of 23916647 is about 4890.4649063254. The cubic root of 23916647 is about 288.1155938695.

The spelling of 23916647 in words is "twenty-three million, nine hundred sixteen thousand, six hundred forty-seven".