3990808732 has 6 divisors (see below), whose sum is σ = 6983915288. Its totient is φ = 1995404364.

The previous prime is 3990808721. The next prime is 3990808819. The reversal of 3990808732 is 2378080993.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498851088 + ... + 498851095.

Almost surely, 2^3990808732 is an apocalyptic number.

It is an amenable number.

3990808732 is a deficient number, since it is larger than the sum of its proper divisors (2993106556).

3990808732 is a wasteful number, since it uses less digits than its factorization.

3990808732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997702187 (or 997702185 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 3990808732 is about 63172.8480599062. The cubic root of 3990808732 is about 1586.1842671345.

The spelling of 3990808732 in words is "three billion, nine hundred ninety million, eight hundred eight thousand, seven hundred thirty-two".