23965717 has 2 divisors, whose sum is σ = 23965718. Its totient is φ = 23965716.

The previous prime is 23965709. The next prime is 23965819. The reversal of 23965717 is 71756932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22953681 + 1012036 = 4791^2 + 1006^2 .

It is a cyclic number.

It is not a de Polignac number, because 23965717 - 2³ = 23965709 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 23965717.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23975717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11982858 + 11982859.

It is an arithmetic number, because the mean of its divisors is an integer number (11982859).

Almost surely, 2^23965717 is an apocalyptic number.

It is an amenable number.

23965717 is a deficient number, since it is larger than the sum of its proper divisors (1).

23965717 is an equidigital number, since it uses as much as digits as its factorization.

23965717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 79380, while the sum is 40.

The square root of 23965717 is about 4895.4792410958. The cubic root of 23965717 is about 288.3125023839.

It can be divided in two parts, 239 and 65717, that added together give a palindrome (65956).

The spelling of 23965717 in words is "twenty-three million, nine hundred sixty-five thousand, seven hundred seventeen".