3999086 has 48 divisors (see below), whose sum is σ = 7794864. Its totient is φ = 1524096.

The previous prime is 3999067. The next prime is 3999109. The reversal of 3999086 is 6809993.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54746 + ... + 54818.

It is an arithmetic number, because the mean of its divisors is an integer number (162393).

Almost surely, 2^3999086 is an apocalyptic number.

3999086 is a deficient number, since it is larger than the sum of its proper divisors (3795778).

3999086 is a wasteful number, since it uses less digits than its factorization.

3999086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 3999086 is about 1999.7714869454. The cubic root of 3999086 is about 158.7280135711.

The spelling of 3999086 in words is "three million, nine hundred ninety-nine thousand, eighty-six".