3997868 has 24 divisors (see below), whose sum is σ = 8112384. Its totient is φ = 1688400.

The previous prime is 3997859. The next prime is 3997871. The reversal of 3997868 is 8687993.

3997868 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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, 983 + ... + 2993.

It is an arithmetic number, because the mean of its divisors is an integer number (338016).

Almost surely, 2^3997868 is an apocalyptic number.

It is an amenable number.

3997868 is an abundant number, since it is smaller than the sum of its proper divisors (4114516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3997868 is a wasteful number, since it uses less digits than its factorization.

3997868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2093 (or 2091 counting only the distinct ones).

The product of its digits is 653184, while the sum is 50.

The square root of 3997868 is about 1999.4669289588. The cubic root of 3997868 is about 158.7118973593.

The spelling of 3997868 in words is "three million, nine hundred ninety-seven thousand, eight hundred sixty-eight".