3856625 has 8 divisors (see below), whose sum is σ = 4813224. Its totient is φ = 3085200.

The previous prime is 3856613. The next prime is 3856631. The reversal of 3856625 is 5266583.

It can be written as a sum of positive squares in 4 ways, for example, as 698896 + 3157729 = 836^2 + 1777^2 .

It is not a de Polignac number, because 3856625 - 2⁶ = 3856561 is a prime.

It is a Duffinian number.

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, 15302 + ... + 15551.

It is an arithmetic number, because the mean of its divisors is an integer number (601653).

Almost surely, 2^3856625 is an apocalyptic number.

It is an amenable number.

3856625 is a deficient number, since it is larger than the sum of its proper divisors (956599).

3856625 is an equidigital number, since it uses as much as digits as its factorization.

3856625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30868 (or 30858 counting only the distinct ones).

The product of its digits is 43200, while the sum is 35.

The square root of 3856625 is about 1963.8291677231. The cubic root of 3856625 is about 156.8203687487.

The spelling of 3856625 in words is "three million, eight hundred fifty-six thousand, six hundred twenty-five".