23997136 has 40 divisors (see below), whose sum is σ = 48137544. Its totient is φ = 11581440.

The previous prime is 23997109. The next prime is 23997151. The reversal of 23997136 is 63179932.

It can be written as a sum of positive squares in 4 ways, for example, as 571536 + 23425600 = 756^2 + 4840^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102876 + ... + 103108.

Almost surely, 2^23997136 is an apocalyptic number.

It is an amenable number.

23997136 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

23997136 is a wasteful number, since it uses less digits than its factorization.

23997136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439 (or 433 counting only the distinct ones).

The product of its digits is 61236, while the sum is 40.

The square root of 23997136 is about 4898.6871710694. The cubic root of 23997136 is about 288.4384397085.

The spelling of 23997136 in words is "twenty-three million, nine hundred ninety-seven thousand, one hundred thirty-six".