3988868 has 24 divisors (see below), whose sum is σ = 7620480. Its totient is φ = 1815840.

The previous prime is 3988823. The next prime is 3988877. The reversal of 3988868 is 8688893.

It is a super-2 number, since 2×3988868² = 31822135842848, which contains 22 as substring.

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, 3623 + ... + 4593.

It is an arithmetic number, because the mean of its divisors is an integer number (317520).

Almost surely, 2^3988868 is an apocalyptic number.

It is an amenable number.

3988868 is a deficient number, since it is larger than the sum of its proper divisors (3631612).

3988868 is a wasteful number, since it uses less digits than its factorization.

3988868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067 (or 1065 counting only the distinct ones).

The product of its digits is 663552, while the sum is 50.

The square root of 3988868 is about 1997.2150610287. The cubic root of 3988868 is about 158.5927104747.

The spelling of 3988868 in words is "three million, nine hundred eighty-eight thousand, eight hundred sixty-eight".