3856925 has 6 divisors (see below), whose sum is σ = 4782618. Its totient is φ = 3085520.

The previous prime is 3856921. The next prime is 3856949. The reversal of 3856925 is 5296583.

It can be written as a sum of positive squares in 3 ways, for example, as 38809 + 3818116 = 197^2 + 1954^2 .

It is not a de Polignac number, because 3856925 - 2² = 3856921 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3856921) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 77114 + ... + 77163.

It is an arithmetic number, because the mean of its divisors is an integer number (797103).

Almost surely, 2^3856925 is an apocalyptic number.

It is an amenable number.

3856925 is a deficient number, since it is larger than the sum of its proper divisors (925693).

3856925 is a wasteful number, since it uses less digits than its factorization.

3856925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154287 (or 154282 counting only the distinct ones).

The product of its digits is 64800, while the sum is 38.

The square root of 3856925 is about 1963.9055476270. The cubic root of 3856925 is about 156.8244349024.

The spelling of 3856925 in words is "three million, eight hundred fifty-six thousand, nine hundred twenty-five".