23984257 has 12 divisors (see below), whose sum is σ = 26482960. Its totient is φ = 21704760.

The previous prime is 23984243. The next prime is 23984281. The reversal of 23984257 is 75248932.

It is not a de Polignac number, because 23984257 - 2¹¹ = 23982209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23984237) 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, 45598 + ... + 46120.

Almost surely, 2^23984257 is an apocalyptic number.

It is an amenable number.

23984257 is a deficient number, since it is larger than the sum of its proper divisors (2498703).

23984257 is a wasteful number, since it uses less digits than its factorization.

23984257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924 (or 913 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 23984257 is about 4897.3724587783. The cubic root of 23984257 is about 288.3868298910.

The spelling of 23984257 in words is "twenty-three million, nine hundred eighty-four thousand, two hundred fifty-seven".