23864385 has 16 divisors (see below), whose sum is σ = 38283840. Its totient is φ = 12694080.

The previous prime is 23864369. The next prime is 23864387. The reversal of 23864385 is 58346832.

It is not a de Polignac number, because 23864385 - 2⁴ = 23864369 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23864387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4426 + ... + 8204.

It is an arithmetic number, because the mean of its divisors is an integer number (2392740).

Almost surely, 2^23864385 is an apocalyptic number.

It is an amenable number.

23864385 is a deficient number, since it is larger than the sum of its proper divisors (14419455).

23864385 is a wasteful number, since it uses less digits than its factorization.

23864385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4208.

The product of its digits is 138240, while the sum is 39.

The square root of 23864385 is about 4885.1187293657. The cubic root of 23864385 is about 287.9055800627.

The spelling of 23864385 in words is "twenty-three million, eight hundred sixty-four thousand, three hundred eighty-five".