3987674568 has 24 divisors (see below), whose sum is σ = 10799952150. Its totient is φ = 1329224832.

The previous prime is 3987674527. The next prime is 3987674569. The reversal of 3987674568 is 8654767893.

3987674568 is a `hidden beast` number, since 3 + 9 + 8 + 7 + 67 + 4 + 568 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2720456964 + 1267217604 = 52158^2 + 35598^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (3987674569) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27692113 + ... + 27692256.

Almost surely, 2^3987674568 is an apocalyptic number.

It is an amenable number.

3987674568 is an abundant number, since it is smaller than the sum of its proper divisors (6812277582).

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

3987674568 is a wasteful number, since it uses less digits than its factorization.

3987674568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55384381 (or 55384374 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 63.

The square root of 3987674568 is about 63148.0369291081. The cubic root of 3987674568 is about 1585.7689241182.

The spelling of 3987674568 in words is "three billion, nine hundred eighty-seven million, six hundred seventy-four thousand, five hundred sixty-eight".