23621313 has 24 divisors (see below), whose sum is σ = 35222688. Its totient is φ = 14030208.

The previous prime is 23621309. The next prime is 23621317. The reversal of 23621313 is 31312632.

It is an interprime number because it is at equal distance from previous prime (23621309) and next prime (23621317).

It is not a de Polignac number, because 23621313 - 2² = 23621309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23621313.

It is not an unprimeable number, because it can be changed into a prime (23621317) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17770 + ... + 19052.

It is an arithmetic number, because the mean of its divisors is an integer number (1467612).

Almost surely, 2^23621313 is an apocalyptic number.

It is an amenable number.

23621313 is a deficient number, since it is larger than the sum of its proper divisors (11601375).

23621313 is a wasteful number, since it uses less digits than its factorization.

23621313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341 (or 1322 counting only the distinct ones).

The product of its digits is 648, while the sum is 21.

The square root of 23621313 is about 4860.1762313727. The cubic root of 23621313 is about 286.9247497033.

Adding to 23621313 its reverse (31312632), we get a palindrome (54933945).

The spelling of 23621313 in words is "twenty-three million, six hundred twenty-one thousand, three hundred thirteen".