23497913 has 4 divisors (see below), whose sum is σ = 23507748. Its totient is φ = 23488080.

The previous prime is 23497891. The next prime is 23497933. The reversal of 23497913 is 31979432.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 10738729 + 12759184 = 3277^2 + 3572^2 .

It is a cyclic number.

It is not a de Polignac number, because 23497913 - 2⁸ = 23497657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23497933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1223 + ... + 6963.

It is an arithmetic number, because the mean of its divisors is an integer number (5876937).

Almost surely, 2^23497913 is an apocalyptic number.

It is an amenable number.

23497913 is a deficient number, since it is larger than the sum of its proper divisors (9835).

23497913 is an equidigital number, since it uses as much as digits as its factorization.

23497913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9834.

The product of its digits is 40824, while the sum is 38.

The square root of 23497913 is about 4847.4645950228. The cubic root of 23497913 is about 286.4242363271.

The spelling of 23497913 in words is "twenty-three million, four hundred ninety-seven thousand, nine hundred thirteen".