3887999984 has 40 divisors (see below), whose sum is σ = 8225591088. Its totient is φ = 1765601280.

The previous prime is 3887999957. The next prime is 3887999989. The reversal of 3887999984 is 4899997883.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3887999989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186704 + ... + 206480.

Almost surely, 2^3887999984 is an apocalyptic number.

It is an amenable number.

3887999984 is an abundant number, since it is smaller than the sum of its proper divisors (4337591104).

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

3887999984 is a wasteful number, since it uses less digits than its factorization.

3887999984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20913 (or 20907 counting only the distinct ones).

The product of its digits is 282175488, while the sum is 74.

The square root of 3887999984 is about 62353.8289441795. The cubic root of 3887999984 is about 1572.4448343683. Note that the first 3 decimals are identical.

The spelling of 3887999984 in words is "three billion, eight hundred eighty-seven million, nine hundred ninety-nine thousand, nine hundred eighty-four".