3990948 has 24 divisors (see below), whose sum is σ = 10028928. Its totient is φ = 1227936.

The previous prime is 3990929. The next prime is 3990967. The reversal of 3990948 is 8490993.

It is an interprime number because it is at equal distance from previous prime (3990929) and next prime (3990967).

It is a nialpdrome in base 13.

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, 12636 + ... + 12947.

It is an arithmetic number, because the mean of its divisors is an integer number (417872).

Almost surely, 2^3990948 is an apocalyptic number.

It is an amenable number.

3990948 is an abundant number, since it is smaller than the sum of its proper divisors (6037980).

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

3990948 is a wasteful number, since it uses less digits than its factorization.

3990948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25603 (or 25601 counting only the distinct ones).

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

The square root of 3990948 is about 1997.7357182570. The cubic root of 3990948 is about 158.6202718043.

The spelling of 3990948 in words is "three million, nine hundred ninety thousand, nine hundred forty-eight".