3985875 has 32 divisors (see below), whose sum is σ = 7375680. Its totient is φ = 2124000.

The previous prime is 3985867. The next prime is 3985879. The reversal of 3985875 is 5785893.

It is not a de Polignac number, because 3985875 - 2³ = 3985867 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

3985875 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3985875.

It is not an unprimeable number, because it can be changed into a prime (3985879) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2785 + ... + 3965.

It is an arithmetic number, because the mean of its divisors is an integer number (230490).

Almost surely, 2^3985875 is an apocalyptic number.

3985875 is a deficient number, since it is larger than the sum of its proper divisors (3389805).

3985875 is a wasteful number, since it uses less digits than its factorization.

3985875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205 (or 1189 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 3985875 is about 1996.4656270520. The cubic root of 3985875 is about 158.5530344938.

The spelling of 3985875 in words is "three million, nine hundred eighty-five thousand, eight hundred seventy-five".