3987359648 has 24 divisors (see below), whose sum is σ = 7876925028. Its totient is φ = 1986870784.

The previous prime is 3987359609. The next prime is 3987359657. The reversal of 3987359648 is 8469537893.

3987359648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2533310224 + 1454049424 = 50332^2 + 38132^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203261 + ... + 222012.

Almost surely, 2^3987359648 is an apocalyptic number.

It is an amenable number.

3987359648 is a deficient number, since it is larger than the sum of its proper divisors (3889565380).

3987359648 is a wasteful number, since it uses less digits than its factorization.

3987359648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425576 (or 425568 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 62.

The square root of 3987359648 is about 63145.5433740181. The cubic root of 3987359648 is about 1585.7271785271.

The spelling of 3987359648 in words is "three billion, nine hundred eighty-seven million, three hundred fifty-nine thousand, six hundred forty-eight".