23945393 has 2 divisors, whose sum is σ = 23945394. Its totient is φ = 23945392.

The previous prime is 23945381. The next prime is 23945399. The reversal of 23945393 is 39354932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12439729 + 11505664 = 3527^2 + 3392^2 .

It is a cyclic number.

It is not a de Polignac number, because 23945393 - 2²⁴ = 7168177 is a prime.

It is not a weakly prime, because it can be changed into another prime (23945399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11972696 + 11972697.

It is an arithmetic number, because the mean of its divisors is an integer number (11972697).

Almost surely, 2^23945393 is an apocalyptic number.

It is an amenable number.

23945393 is a deficient number, since it is larger than the sum of its proper divisors (1).

23945393 is an equidigital number, since it uses as much as digits as its factorization.

23945393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87480, while the sum is 38.

The square root of 23945393 is about 4893.4030081325. The cubic root of 23945393 is about 288.2309787016.

The spelling of 23945393 in words is "twenty-three million, nine hundred forty-five thousand, three hundred ninety-three".