3856506 has 16 divisors (see below), whose sum is σ = 8119200. Its totient is φ = 1217808.

The previous prime is 3856499. The next prime is 3856511. The reversal of 3856506 is 6056583.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16801 + ... + 17028.

It is an arithmetic number, because the mean of its divisors is an integer number (507450).

Almost surely, 2^3856506 is an apocalyptic number.

3856506 is an abundant number, since it is smaller than the sum of its proper divisors (4262694).

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

3856506 is a wasteful number, since it uses less digits than its factorization.

3856506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33853.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 3856506 is about 1963.7988695383. The cubic root of 3856506 is about 156.8187557826.

The spelling of 3856506 in words is "three million, eight hundred fifty-six thousand, five hundred six".