23638761 has 12 divisors (see below), whose sum is σ = 34465392. Its totient is φ = 15611256.

The previous prime is 23638753. The next prime is 23638801. The reversal of 23638761 is 16783632.

It is a happy number.

It is not a de Polignac number, because 23638761 - 2³ = 23638753 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (23638711) 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, 11311 + ... + 13236.

It is an arithmetic number, because the mean of its divisors is an integer number (2872116).

Almost surely, 2^23638761 is an apocalyptic number.

It is an amenable number.

23638761 is a deficient number, since it is larger than the sum of its proper divisors (10826631).

23638761 is a wasteful number, since it uses less digits than its factorization.

23638761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24660 (or 24657 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 23638761 is about 4861.9708966632. The cubic root of 23638761 is about 286.9953784458.

The spelling of 23638761 in words is "twenty-three million, six hundred thirty-eight thousand, seven hundred sixty-one".