3998616 has 16 divisors (see below), whose sum is σ = 9996600. Its totient is φ = 1332864.

The previous prime is 3998609. The next prime is 3998623. The reversal of 3998616 is 6168993.

3998616 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3998609) and next prime (3998623).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83281 + ... + 83328.

Almost surely, 2^3998616 is an apocalyptic number.

It is an amenable number.

3998616 is an abundant number, since it is smaller than the sum of its proper divisors (5997984).

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

3998616 is a wasteful number, since it uses less digits than its factorization.

3998616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166618 (or 166614 counting only the distinct ones).

The product of its digits is 69984, while the sum is 42.

The square root of 3998616 is about 1999.6539700658. The cubic root of 3998616 is about 158.7217950594.

The spelling of 3998616 in words is "three million, nine hundred ninety-eight thousand, six hundred sixteen".