3871889 has 8 divisors (see below), whose sum is σ = 4617600. Its totient is φ = 3174336.

The previous prime is 3871883. The next prime is 3871909. The reversal of 3871889 is 9881783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3871889 is a prime.

It is a Duffinian number.

It is a Curzon number.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11864 + ... + 12185.

It is an arithmetic number, because the mean of its divisors is an integer number (577200).

Almost surely, 2^3871889 is an apocalyptic number.

It is an amenable number.

3871889 is a deficient number, since it is larger than the sum of its proper divisors (745711).

3871889 is a wasteful number, since it uses less digits than its factorization.

3871889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24079.

The product of its digits is 96768, while the sum is 44.

The square root of 3871889 is about 1967.7116150493. The cubic root of 3871889 is about 157.0269876660.

The spelling of 3871889 in words is "three million, eight hundred seventy-one thousand, eight hundred eighty-nine".