3987266368 has 28 divisors (see below), whose sum is σ = 7934947300. Its totient is φ = 1987909632.

The previous prime is 3987266317. The next prime is 3987266389. The reversal of 3987266368 is 8636627893.

3987266368 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 3286499584 + 700766784 = 57328^2 + 26472^2 .

It is a super-2 number, since 2×3987266368² = 31796586178767822848, which contains 22 as substring.

It is a congruent number.

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, 66921 + ... + 111592.

It is an arithmetic number, because the mean of its divisors is an integer number (283390975).

Almost surely, 2^3987266368 is an apocalyptic number.

It is an amenable number.

3987266368 is a deficient number, since it is larger than the sum of its proper divisors (3947680932).

3987266368 is a wasteful number, since it uses less digits than its factorization.

3987266368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178874 (or 178864 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 58.

The square root of 3987266368 is about 63144.8047585864. The cubic root of 3987266368 is about 1585.7148129688.

The spelling of 3987266368 in words is "three billion, nine hundred eighty-seven million, two hundred sixty-six thousand, three hundred sixty-eight".