3865875 has 48 divisors (see below), whose sum is σ = 7079904. Its totient is φ = 1872000.

The previous prime is 3865867. The next prime is 3865877. The reversal of 3865875 is 5785683.

It is not a de Polignac number, because 3865875 - 2³ = 3865867 is a prime.

Its product of digits (201600) is a multiple of the sum of its prime factors (105).

3865875 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3865877) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 63345 + ... + 63405.

It is an arithmetic number, because the mean of its divisors is an integer number (147498).

Almost surely, 2^3865875 is an apocalyptic number.

3865875 is a deficient number, since it is larger than the sum of its proper divisors (3214029).

3865875 is a wasteful number, since it uses less digits than its factorization.

3865875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105 (or 82 counting only the distinct ones).

The product of its digits is 201600, while the sum is 42.

The square root of 3865875 is about 1966.1828500930. The cubic root of 3865875 is about 156.9456449701.

The spelling of 3865875 in words is "three million, eight hundred sixty-five thousand, eight hundred seventy-five".