3908985 has 16 divisors (see below), whose sum is σ = 6279360. Its totient is φ = 2076480.

The previous prime is 3908921. The next prime is 3909019. The reversal of 3908985 is 5898093.

It is not a de Polignac number, because 3908985 - 2⁶ = 3908921 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6006 + ... + 6624.

It is an arithmetic number, because the mean of its divisors is an integer number (392460).

Almost surely, 2^3908985 is an apocalyptic number.

It is an amenable number.

3908985 is a deficient number, since it is larger than the sum of its proper divisors (2370375).

3908985 is a wasteful number, since it uses less digits than its factorization.

3908985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 3908985 is about 1977.1153228884. The cubic root of 3908985 is about 157.5268787586.

The spelling of 3908985 in words is "three million, nine hundred eight thousand, nine hundred eighty-five".