3881895 has 16 divisors (see below), whose sum is σ = 6259680. Its totient is φ = 2054144.

The previous prime is 3881887. The next prime is 3881951. The reversal of 3881895 is 5981883.

It is a cyclic number.

It is not a de Polignac number, because 3881895 - 2³ = 3881887 is a prime.

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, 1111 + ... + 2999.

It is an arithmetic number, because the mean of its divisors is an integer number (391230).

Almost surely, 2^3881895 is an apocalyptic number.

3881895 is a deficient number, since it is larger than the sum of its proper divisors (2377785).

3881895 is a wasteful number, since it uses less digits than its factorization.

3881895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034.

The product of its digits is 69120, while the sum is 42.

The square root of 3881895 is about 1970.2525218865. The cubic root of 3881895 is about 157.1621379333.

The spelling of 3881895 in words is "three million, eight hundred eighty-one thousand, eight hundred ninety-five".