3889686 has 16 divisors (see below), whose sum is σ = 7849584. Its totient is φ = 1284864.

The previous prime is 3889679. The next prime is 3889727. The reversal of 3889686 is 6869883.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2191 + ... + 3546.

It is an arithmetic number, because the mean of its divisors is an integer number (490599).

Almost surely, 2^3889686 is an apocalyptic number.

3889686 is an abundant number, since it is smaller than the sum of its proper divisors (3959898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3889686 is a wasteful number, since it uses less digits than its factorization.

3889686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5855.

The product of its digits is 497664, while the sum is 48.

The square root of 3889686 is about 1972.2286885653. The cubic root of 3889686 is about 157.2672096374.

The spelling of 3889686 in words is "three million, eight hundred eighty-nine thousand, six hundred eighty-six".