23638575 has 12 divisors (see below), whose sum is σ = 39082568. Its totient is φ = 12607200.

The previous prime is 23638553. The next prime is 23638579. The reversal of 23638575 is 57583632.

It is not a de Polignac number, because 23638575 - 2⁵ = 23638543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23638579) 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 11 ways as a sum of consecutive naturals, for example, 157516 + ... + 157665.

Almost surely, 2^23638575 is an apocalyptic number.

23638575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23638575 is a deficient number, since it is larger than the sum of its proper divisors (15443993).

23638575 is a wasteful number, since it uses less digits than its factorization.

23638575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315194 (or 315189 counting only the distinct ones).

The product of its digits is 151200, while the sum is 39.

The square root of 23638575 is about 4861.9517685802. The cubic root of 23638575 is about 286.9946257092.

The spelling of 23638575 in words is "twenty-three million, six hundred thirty-eight thousand, five hundred seventy-five".