3875661 has 24 divisors (see below), whose sum is σ = 6068160. Its totient is φ = 2440152.

The previous prime is 3875653. The next prime is 3875671. The reversal of 3875661 is 1665783.

It is not a de Polignac number, because 3875661 - 2³ = 3875653 is a prime.

Its product of digits (30240) is a multiple of the sum of its prime divisors (105).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3875671) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49020 + ... + 49098.

It is an arithmetic number, because the mean of its divisors is an integer number (252840).

Almost surely, 2^3875661 is an apocalyptic number.

It is an amenable number.

3875661 is a deficient number, since it is larger than the sum of its proper divisors (2192499).

3875661 is an equidigital number, since it uses as much as digits as its factorization.

3875661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 105 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 3875661 is about 1968.6698555116. The cubic root of 3875661 is about 157.0779630908.

The spelling of 3875661 in words is "three million, eight hundred seventy-five thousand, six hundred sixty-one".