3871886 has 16 divisors (see below), whose sum is σ = 6187104. Its totient is φ = 1810944.

The previous prime is 3871883. The next prime is 3871909. The reversal of 3871886 is 6881783.

3871886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3871883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8726 + ... + 9158.

It is an arithmetic number, because the mean of its divisors is an integer number (386694).

Almost surely, 2^3871886 is an apocalyptic number.

3871886 is a deficient number, since it is larger than the sum of its proper divisors (2315218).

3871886 is a wasteful number, since it uses less digits than its factorization.

3871886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715.

The product of its digits is 64512, while the sum is 41.

The square root of 3871886 is about 1967.7108527423. The cubic root of 3871886 is about 157.0269471103.

The spelling of 3871886 in words is "three million, eight hundred seventy-one thousand, eight hundred eighty-six".