3989704 has 24 divisors (see below), whose sum is σ = 7760610. Its totient is φ = 1922816.

The previous prime is 3989701. The next prime is 3989723. The reversal of 3989704 is 4079893.

It can be written as a sum of positive squares in 3 ways, for example, as 3617604 + 372100 = 1902^2 + 610^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3989701) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6432 + ... + 7024.

Almost surely, 2^3989704 is an apocalyptic number.

It is an amenable number.

3989704 is a deficient number, since it is larger than the sum of its proper divisors (3770906).

3989704 is a wasteful number, since it uses less digits than its factorization.

3989704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657 (or 624 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 3989704 is about 1997.4243414958. The cubic root of 3989704 is about 158.6037891604.

The spelling of 3989704 in words is "three million, nine hundred eighty-nine thousand, seven hundred four".