3987669936 has 20 divisors (see below), whose sum is σ = 10301480792. Its totient is φ = 1329223296.

The previous prime is 3987669929. The next prime is 3987669941. The reversal of 3987669936 is 6399667893.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41538181 + ... + 41538276.

Almost surely, 2^3987669936 is an apocalyptic number.

It is an amenable number.

3987669936 is an abundant number, since it is smaller than the sum of its proper divisors (6313810856).

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

3987669936 is a wasteful number, since it uses less digits than its factorization.

3987669936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83076468 (or 83076462 counting only the distinct ones).

The product of its digits is 79361856, while the sum is 66.

The square root of 3987669936 is about 63148.0002533730. Note that the first 3 decimals coincide. The cubic root of 3987669936 is about 1585.7683101192.

The spelling of 3987669936 in words is "three billion, nine hundred eighty-seven million, six hundred sixty-nine thousand, nine hundred thirty-six".