3988487860 has 48 divisors (see below), whose sum is σ = 9703524096. Its totient is φ = 1348745472.

The previous prime is 3988487857. The next prime is 3988487897. The reversal of 3988487860 is 687848893.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184912 + ... + 205351.

It is an arithmetic number, because the mean of its divisors is an integer number (202156752).

Almost surely, 2^3988487860 is an apocalyptic number.

It is an amenable number.

3988487860 is an abundant number, since it is smaller than the sum of its proper divisors (5715036236).

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

3988487860 is a wasteful number, since it uses less digits than its factorization.

3988487860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390352 (or 390350 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 61.

The square root of 3988487860 is about 63154.4761675687. The cubic root of 3988487860 is about 1585.8767234124.

The spelling of 3988487860 in words is "three billion, nine hundred eighty-eight million, four hundred eighty-seven thousand, eight hundred sixty".