3987528712 has 8 divisors (see below), whose sum is σ = 7476616350. Its totient is φ = 1993764352.

The previous prime is 3987528707. The next prime is 3987528737. The reversal of 3987528712 is 2178257893.

3987528712 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 only one way, i.e., 3922015876 + 65512836 = 62626^2 + 8094^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 3987528712.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249220537 + ... + 249220552.

Almost surely, 2^3987528712 is an apocalyptic number.

It is an amenable number.

3987528712 is a deficient number, since it is larger than the sum of its proper divisors (3489087638).

3987528712 is a wasteful number, since it uses less digits than its factorization.

3987528712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498441095 (or 498441091 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 52.

The square root of 3987528712 is about 63146.8820449593. The cubic root of 3987528712 is about 1585.7495898146.

The spelling of 3987528712 in words is "three billion, nine hundred eighty-seven million, five hundred twenty-eight thousand, seven hundred twelve".