23617613 has 2 divisors, whose sum is σ = 23617614. Its totient is φ = 23617612.

The previous prime is 23617609. The next prime is 23617639. The reversal of 23617613 is 31671632.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22915369 + 702244 = 4787^2 + 838^2 .

It is a cyclic number.

It is not a de Polignac number, because 23617613 - 2² = 23617609 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23617673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11808806 + 11808807.

It is an arithmetic number, because the mean of its divisors is an integer number (11808807).

Almost surely, 2^23617613 is an apocalyptic number.

It is an amenable number.

23617613 is a deficient number, since it is larger than the sum of its proper divisors (1).

23617613 is an equidigital number, since it uses as much as digits as its factorization.

23617613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 29.

The square root of 23617613 is about 4859.7955718322. The cubic root of 23617613 is about 286.9097677953.

The spelling of 23617613 in words is "twenty-three million, six hundred seventeen thousand, six hundred thirteen".