23865988 has 6 divisors (see below), whose sum is σ = 41765486. Its totient is φ = 11932992.

The previous prime is 23865901. The next prime is 23865991. The reversal of 23865988 is 88956832.

It can be written as a sum of positive squares in only one way, i.e., 23213124 + 652864 = 4818^2 + 808^2 .

It is a super-2 number, since 2×23865988² = 1139170766432288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2983245 + ... + 2983252.

Almost surely, 2^23865988 is an apocalyptic number.

It is an amenable number.

23865988 is a deficient number, since it is larger than the sum of its proper divisors (17899498).

23865988 is a wasteful number, since it uses less digits than its factorization.

23865988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5966501 (or 5966499 counting only the distinct ones).

The product of its digits is 829440, while the sum is 49.

The square root of 23865988 is about 4885.2827963179. The cubic root of 23865988 is about 287.9120262420.

The spelling of 23865988 in words is "twenty-three million, eight hundred sixty-five thousand, nine hundred eighty-eight".