3987875 has 16 divisors (see below), whose sum is σ = 5068128. Its totient is φ = 3132000.

The previous prime is 3987859. The next prime is 3987887. The reversal of 3987875 is 5787893.

It is not a de Polignac number, because 3987875 - 2⁴ = 3987859 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7364 + ... + 7886.

It is an arithmetic number, because the mean of its divisors is an integer number (316758).

Almost surely, 2^3987875 is an apocalyptic number.

3987875 is a deficient number, since it is larger than the sum of its proper divisors (1080253).

3987875 is an equidigital number, since it uses as much as digits as its factorization.

3987875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599 (or 589 counting only the distinct ones).

The product of its digits is 423360, while the sum is 47.

The square root of 3987875 is about 1996.9664493927. The cubic root of 3987875 is about 158.5795492110.

The spelling of 3987875 in words is "three million, nine hundred eighty-seven thousand, eight hundred seventy-five".