3856656 has 20 divisors (see below), whose sum is σ = 9963152. Its totient is φ = 1285536.

The previous prime is 3856631. The next prime is 3856661. The reversal of 3856656 is 6566583.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40126 + ... + 40221.

Almost surely, 2^3856656 is an apocalyptic number.

It is an amenable number.

3856656 is an abundant number, since it is smaller than the sum of its proper divisors (6106496).

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

3856656 is a wasteful number, since it uses less digits than its factorization.

3856656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80358 (or 80352 counting only the distinct ones).

The product of its digits is 129600, while the sum is 39.

The square root of 3856656 is about 1963.8370604508. The cubic root of 3856656 is about 156.8207889277.

The spelling of 3856656 in words is "three million, eight hundred fifty-six thousand, six hundred fifty-six".