3899916 has 36 divisors (see below), whose sum is σ = 9947392. Its totient is φ = 1288224.

The previous prime is 3899887. The next prime is 3899927. The reversal of 3899916 is 6199983.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4146 + ... + 4998.

Almost surely, 2^3899916 is an apocalyptic number.

3899916 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3899916 is an abundant number, since it is smaller than the sum of its proper divisors (6047476).

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

3899916 is a wasteful number, since it uses less digits than its factorization.

3899916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990 (or 985 counting only the distinct ones).

The product of its digits is 104976, while the sum is 45.

The square root of 3899916 is about 1974.8204981719. The cubic root of 3899916 is about 157.4049615600.

The spelling of 3899916 in words is "three million, eight hundred ninety-nine thousand, nine hundred sixteen".