23409613 has 2 divisors, whose sum is σ = 23409614. Its totient is φ = 23409612.

The previous prime is 23409593. The next prime is 23409667. The reversal of 23409613 is 31690432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15468489 + 7941124 = 3933^2 + 2818^2 .

It is a cyclic number.

It is not a de Polignac number, because 23409613 - 2²¹ = 21312461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23409913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11704806 + 11704807.

It is an arithmetic number, because the mean of its divisors is an integer number (11704807).

Almost surely, 2^23409613 is an apocalyptic number.

It is an amenable number.

23409613 is a deficient number, since it is larger than the sum of its proper divisors (1).

23409613 is an equidigital number, since it uses as much as digits as its factorization.

23409613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 23409613 is about 4838.3481685385. The cubic root of 23409613 is about 286.0650128500.

The spelling of 23409613 in words is "twenty-three million, four hundred nine thousand, six hundred thirteen".