3999704 has 16 divisors (see below), whose sum is σ = 7531920. Its totient is φ = 1991200.

The previous prime is 3999703. The next prime is 3999707. The reversal of 3999704 is 4079993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3999703) 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, 1154 + ... + 3054.

It is an arithmetic number, because the mean of its divisors is an integer number (470745).

Almost surely, 2^3999704 is an apocalyptic number.

It is an amenable number.

3999704 is a deficient number, since it is larger than the sum of its proper divisors (3532216).

3999704 is a wasteful number, since it uses less digits than its factorization.

3999704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2170 (or 2166 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 3999704 is about 1999.9259986309. The cubic root of 3999704 is about 158.7361895110.

The spelling of 3999704 in words is "three million, nine hundred ninety-nine thousand, seven hundred four".