23987638 has 8 divisors (see below), whose sum is σ = 36009288. Its totient is φ = 11984544.

The previous prime is 23987627. The next prime is 23987653. The reversal of 23987638 is 83678932.

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

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, 756 + ... + 6967.

It is an arithmetic number, because the mean of its divisors is an integer number (4501161).

Almost surely, 2^23987638 is an apocalyptic number.

23987638 is a deficient number, since it is larger than the sum of its proper divisors (12021650).

23987638 is a wasteful number, since it uses less digits than its factorization.

23987638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9278.

The product of its digits is 435456, while the sum is 46.

The square root of 23987638 is about 4897.7176317138. The cubic root of 23987638 is about 288.4003803081.

The spelling of 23987638 in words is "twenty-three million, nine hundred eighty-seven thousand, six hundred thirty-eight".