3857886 has 24 divisors (see below), whose sum is σ = 8467680. Its totient is φ = 1269216.

The previous prime is 3857873. The next prime is 3857891. The reversal of 3857886 is 6887583.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66 + ... + 2778.

It is an arithmetic number, because the mean of its divisors is an integer number (352820).

Almost surely, 2^3857886 is an apocalyptic number.

3857886 is an abundant number, since it is smaller than the sum of its proper divisors (4609794).

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

3857886 is a wasteful number, since it uses less digits than its factorization.

3857886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800 (or 2797 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 3857886 is about 1964.1501979228. The cubic root of 3857886 is about 156.8374587290.

The spelling of 3857886 in words is "three million, eight hundred fifty-seven thousand, eight hundred eighty-six".