23988393 has 80 divisors (see below), whose sum is σ = 44721600. Its totient is φ = 12597120.

The previous prime is 23988373. The next prime is 23988407. The reversal of 23988393 is 39388932.

It is not a de Polignac number, because 23988393 - 2⁶ = 23988329 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23988323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 220023 + ... + 220131.

It is an arithmetic number, because the mean of its divisors is an integer number (559020).

Almost surely, 2^23988393 is an apocalyptic number.

It is an amenable number.

23988393 is a deficient number, since it is larger than the sum of its proper divisors (20733207).

23988393 is a wasteful number, since it uses less digits than its factorization.

23988393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 155 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 23988393 is about 4897.7947078251. The cubic root of 23988393 is about 288.4034060333.

The spelling of 23988393 in words is "twenty-three million, nine hundred eighty-eight thousand, three hundred ninety-three".