23636997 has 12 divisors (see below), whose sum is σ = 34652800. Its totient is φ = 15522408.

The previous prime is 23636959. The next prime is 23636999. The reversal of 23636997 is 79963632.

23636997 is a `hidden beast` number, since 2 + 3 + 636 + 9 + 9 + 7 = 666.

It is not a de Polignac number, because 23636997 - 2¹² = 23632901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23636999) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18997 + ... + 20202.

Almost surely, 2^23636997 is an apocalyptic number.

It is an amenable number.

23636997 is a deficient number, since it is larger than the sum of its proper divisors (11015803).

23636997 is a wasteful number, since it uses less digits than its factorization.

23636997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39272 (or 39269 counting only the distinct ones).

The product of its digits is 367416, while the sum is 45.

The square root of 23636997 is about 4861.7894853644. The cubic root of 23636997 is about 286.9882394304.

The spelling of 23636997 in words is "twenty-three million, six hundred thirty-six thousand, nine hundred ninety-seven".