23838661 has 16 divisors (see below), whose sum is σ = 30135168. Its totient is φ = 18316800.

The previous prime is 23838653. The next prime is 23838691. The reversal of 23838661 is 16683832.

It is a cyclic number.

It is not a de Polignac number, because 23838661 - 2³ = 23838653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23838661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23838611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3501 + ... + 7741.

It is an arithmetic number, because the mean of its divisors is an integer number (1883448).

Almost surely, 2^23838661 is an apocalyptic number.

It is an amenable number.

23838661 is a deficient number, since it is larger than the sum of its proper divisors (6296507).

23838661 is a wasteful number, since it uses less digits than its factorization.

23838661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4332.

The product of its digits is 41472, while the sum is 37.

The square root of 23838661 is about 4882.4851254254. The cubic root of 23838661 is about 287.8020960662.

The spelling of 23838661 in words is "twenty-three million, eight hundred thirty-eight thousand, six hundred sixty-one".