3990699 has 12 divisors (see below), whose sum is σ = 6103656. Its totient is φ = 2503872.

The previous prime is 3990689. The next prime is 3990731. The reversal of 3990699 is 9960993.

It is not a de Polignac number, because 3990699 - 2⁹ = 3990187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3990619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12889 + ... + 13194.

It is an arithmetic number, because the mean of its divisors is an integer number (508638).

Almost surely, 2^3990699 is an apocalyptic number.

3990699 is a deficient number, since it is larger than the sum of its proper divisors (2112957).

3990699 is a wasteful number, since it uses less digits than its factorization.

3990699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26106 (or 26103 counting only the distinct ones).

The product of its (nonzero) digits is 118098, while the sum is 45.

The square root of 3990699 is about 1997.6733967293. The cubic root of 3990699 is about 158.6169728998.

The spelling of 3990699 in words is "three million, nine hundred ninety thousand, six hundred ninety-nine".