23210613 has 12 divisors (see below), whose sum is σ = 33590700. Its totient is φ = 15444096.

The previous prime is 23210597. The next prime is 23210617. The reversal of 23210613 is 31601232.

It can be written as a sum of positive squares in 2 ways, for example, as 5846724 + 17363889 = 2418^2 + 4167^2 .

It is not a de Polignac number, because 23210613 - 2⁴ = 23210597 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23210617) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3163 + ... + 7511.

It is an arithmetic number, because the mean of its divisors is an integer number (2799225).

Almost surely, 2^23210613 is an apocalyptic number.

It is an amenable number.

23210613 is a deficient number, since it is larger than the sum of its proper divisors (10380087).

23210613 is a wasteful number, since it uses less digits than its factorization.

23210613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4948 (or 4945 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 23210613 is about 4817.7394076475. The cubic root of 23210613 is about 285.2521130167.

Adding to 23210613 its reverse (31601232), we get a palindrome (54811845).

The spelling of 23210613 in words is "twenty-three million, two hundred ten thousand, six hundred thirteen".