3997676664 has 48 divisors (see below), whose sum is σ = 10841836200. Its totient is φ = 1330737984.

The previous prime is 3997676659. The next prime is 3997676671. The reversal of 3997676664 is 4666767993.

It is a congruent number.

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, 15642 + ... + 90774.

Almost surely, 2^3997676664 is an apocalyptic number.

It is an amenable number.

3997676664 is an abundant number, since it is smaller than the sum of its proper divisors (6844159536).

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

3997676664 is a wasteful number, since it uses less digits than its factorization.

3997676664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75884 (or 75877 counting only the distinct ones).

The product of its digits is 61725888, while the sum is 63.

The square root of 3997676664 is about 63227.1829516388. The cubic root of 3997676664 is about 1587.0936536105.

The spelling of 3997676664 in words is "three billion, nine hundred ninety-seven million, six hundred seventy-six thousand, six hundred sixty-four".