3990761604 has 36 divisors (see below), whose sum is σ = 10089679600. Its totient is φ = 1330000560.

The previous prime is 3990761597. The next prime is 3990761627. The reversal of 3990761604 is 4061670993.

3990761604 is a `hidden beast` number, since 39 + 9 + 0 + 7 + 6 + 1 + 604 = 666.

3990761604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 3990761604.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 347547 + ... + 358845.

Almost surely, 2^3990761604 is an apocalyptic number.

It is an amenable number.

3990761604 is an abundant number, since it is smaller than the sum of its proper divisors (6098917996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3990761604 is a wasteful number, since it uses less digits than its factorization.

3990761604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21120 (or 21115 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 3990761604 is about 63172.4750504522. The cubic root of 3990761604 is about 1586.1780232884.

The spelling of 3990761604 in words is "three billion, nine hundred ninety million, seven hundred sixty-one thousand, six hundred four".