23684638 has 8 divisors (see below), whose sum is σ = 37616832. Its totient is φ = 11145696.

The previous prime is 23684599. The next prime is 23684657. The reversal of 23684638 is 83648632.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 23684638.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 348270 + ... + 348337.

It is an arithmetic number, because the mean of its divisors is an integer number (4702104).

Almost surely, 2^23684638 is an apocalyptic number.

23684638 is a deficient number, since it is larger than the sum of its proper divisors (13932194).

23684638 is a wasteful number, since it uses less digits than its factorization.

23684638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696626.

The product of its digits is 165888, while the sum is 40.

The square root of 23684638 is about 4866.6865524708. The cubic root of 23684638 is about 287.1809208623.

The spelling of 23684638 in words is "twenty-three million, six hundred eighty-four thousand, six hundred thirty-eight".