3856887 has 12 divisors (see below), whose sum is σ = 5627544. Its totient is φ = 2545200.

The previous prime is 3856877. The next prime is 3856891. The reversal of 3856887 is 7886583.

3856887 is a `hidden beast` number, since 3 + 8 + 568 + 87 = 666.

It is not a de Polignac number, because 3856887 - 2⁶ = 3856823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3856837) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1213 + ... + 3030.

It is an arithmetic number, because the mean of its divisors is an integer number (468962).

Almost surely, 2^3856887 is an apocalyptic number.

3856887 is a deficient number, since it is larger than the sum of its proper divisors (1770657).

3856887 is a wasteful number, since it uses less digits than its factorization.

3856887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4350 (or 4347 counting only the distinct ones).

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

The square root of 3856887 is about 1963.8958730035. The cubic root of 3856887 is about 156.8239198679.

The spelling of 3856887 in words is "three million, eight hundred fifty-six thousand, eight hundred eighty-seven".