3886686 has 12 divisors (see below), whose sum is σ = 8421192. Its totient is φ = 1295556.

The previous prime is 3886679. The next prime is 3886699. The reversal of 3886686 is 6866883.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 107946 + ... + 107981.

It is an arithmetic number, because the mean of its divisors is an integer number (701766).

Almost surely, 2^3886686 is an apocalyptic number.

3886686 is an abundant number, since it is smaller than the sum of its proper divisors (4534506).

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

3886686 is a wasteful number, since it uses less digits than its factorization.

3886686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215935 (or 215932 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 3886686 is about 1971.4679809726. The cubic root of 3886686 is about 157.2267673860.

The spelling of 3886686 in words is "three million, eight hundred eighty-six thousand, six hundred eighty-six".