3999908 has 12 divisors (see below), whose sum is σ = 7636272. Its totient is φ = 1818120.

The previous prime is 3999901. The next prime is 3999917. The reversal of 3999908 is 8099993.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3999901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45410 + ... + 45497.

It is an arithmetic number, because the mean of its divisors is an integer number (636356).

Almost surely, 2^3999908 is an apocalyptic number.

It is an amenable number.

3999908 is a deficient number, since it is larger than the sum of its proper divisors (3636364).

3999908 is a wasteful number, since it uses less digits than its factorization.

3999908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90922 (or 90920 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 47.

The square root of 3999908 is about 1999.9769998677. The cubic root of 3999908 is about 158.7388881800.

The spelling of 3999908 in words is "three million, nine hundred ninety-nine thousand, nine hundred eight".