23984565 has 16 divisors (see below), whose sum is σ = 41864256. Its totient is φ = 11628800.

The previous prime is 23984557. The next prime is 23984629. The reversal of 23984565 is 56548932.

It is not a de Polignac number, because 23984565 - 2³ = 23984557 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 72516 + ... + 72845.

It is an arithmetic number, because the mean of its divisors is an integer number (2616516).

Almost surely, 2^23984565 is an apocalyptic number.

It is an amenable number.

23984565 is a deficient number, since it is larger than the sum of its proper divisors (17879691).

23984565 is a wasteful number, since it uses less digits than its factorization.

23984565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145380.

The product of its digits is 259200, while the sum is 42.

The square root of 23984565 is about 4897.4039041108. The cubic root of 23984565 is about 288.3880643502.

The spelling of 23984565 in words is "twenty-three million, nine hundred eighty-four thousand, five hundred sixty-five".