23564393 has 2 divisors, whose sum is σ = 23564394. Its totient is φ = 23564392.

The previous prime is 23564341. The next prime is 23564407. The reversal of 23564393 is 39346532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23164969 + 399424 = 4813^2 + 632^2 .

It is a cyclic number.

It is not a de Polignac number, because 23564393 - 2¹⁸ = 23302249 is a prime.

It is not a weakly prime, because it can be changed into another prime (23560393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11782196 + 11782197.

It is an arithmetic number, because the mean of its divisors is an integer number (11782197).

Almost surely, 2^23564393 is an apocalyptic number.

It is an amenable number.

23564393 is a deficient number, since it is larger than the sum of its proper divisors (1).

23564393 is an equidigital number, since it uses as much as digits as its factorization.

23564393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 35.

The square root of 23564393 is about 4854.3169447410. The cubic root of 23564393 is about 286.6940979399.

The spelling of 23564393 in words is "twenty-three million, five hundred sixty-four thousand, three hundred ninety-three".