3887971880 has 64 divisors (see below), whose sum is σ = 9598674960. Its totient is φ = 1408462848.

The previous prime is 3887971873. The next prime is 3887971883. The reversal of 3887971880 is 881797883.

It can be written as a sum of positive squares in 8 ways, for example, as 950982244 + 2936989636 = 30838^2 + 54194^2 .

It is not an unprimeable number, because it can be changed into a prime (3887971883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42977 + ... + 98096.

Almost surely, 2^3887971880 is an apocalyptic number.

It is an amenable number.

3887971880 is an abundant number, since it is smaller than the sum of its proper divisors (5710703080).

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

3887971880 is a wasteful number, since it uses less digits than its factorization.

3887971880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141150 (or 141146 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 59.

The square root of 3887971880 is about 62353.6035847167. The cubic root of 3887971880 is about 1572.4410456084.

The spelling of 3887971880 in words is "three billion, eight hundred eighty-seven million, nine hundred seventy-one thousand, eight hundred eighty".