23638669 has 8 divisors (see below), whose sum is σ = 24095232. Its totient is φ = 23185680.

The previous prime is 23638663. The next prime is 23638711. The reversal of 23638669 is 96683632.

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

It is a cyclic number.

It is not a de Polignac number, because 23638669 - 2²¹ = 21541517 is a prime.

It is a super-2 number, since 2×23638669² = 1117573344183122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23638663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15087 + ... + 16579.

It is an arithmetic number, because the mean of its divisors is an integer number (3011904).

Almost surely, 2^23638669 is an apocalyptic number.

It is an amenable number.

23638669 is a deficient number, since it is larger than the sum of its proper divisors (456563).

23638669 is a wasteful number, since it uses less digits than its factorization.

23638669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787.

The product of its digits is 279936, while the sum is 43.

The square root of 23638669 is about 4861.9614354703. The cubic root of 23638669 is about 286.9950061250.

The spelling of 23638669 in words is "twenty-three million, six hundred thirty-eight thousand, six hundred sixty-nine".