23259613 has 4 divisors (see below), whose sum is σ = 25048828. Its totient is φ = 21470400.

The previous prime is 23259571. The next prime is 23259617. The reversal of 23259613 is 31695232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8305924 + 14953689 = 2882^2 + 3867^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23259613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23259617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 894588 + ... + 894613.

It is an arithmetic number, because the mean of its divisors is an integer number (6262207).

Almost surely, 2^23259613 is an apocalyptic number.

It is an amenable number.

23259613 is a deficient number, since it is larger than the sum of its proper divisors (1789215).

23259613 is a wasteful number, since it uses less digits than its factorization.

23259613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1789214.

The product of its digits is 9720, while the sum is 31.

The square root of 23259613 is about 4822.8220991449. The cubic root of 23259613 is about 285.4527041454.

The spelling of 23259613 in words is "twenty-three million, two hundred fifty-nine thousand, six hundred thirteen".