23739613 has 2 divisors, whose sum is σ = 23739614. Its totient is φ = 23739612.

The previous prime is 23739539. The next prime is 23739629. The reversal of 23739613 is 31693732.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22534009 + 1205604 = 4747^2 + 1098^2 .

It is a cyclic number.

It is not a de Polignac number, because 23739613 - 2²¹ = 21642461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23739413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11869806 + 11869807.

It is an arithmetic number, because the mean of its divisors is an integer number (11869807).

Almost surely, 2^23739613 is an apocalyptic number.

It is an amenable number.

23739613 is a deficient number, since it is larger than the sum of its proper divisors (1).

23739613 is an equidigital number, since it uses as much as digits as its factorization.

23739613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20412, while the sum is 34.

The square root of 23739613 is about 4872.3313721462. The cubic root of 23739613 is about 287.4029434200.

The spelling of 23739613 in words is "twenty-three million, seven hundred thirty-nine thousand, six hundred thirteen".