3856125 has 64 divisors (see below), whose sum is σ = 7967232. Its totient is φ = 1612800.

The previous prime is 3856123. The next prime is 3856129. The reversal of 3856125 is 5216583.

It is not a de Polignac number, because 3856125 - 2¹ = 3856123 is a prime.

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

3856125 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3856092 and 3856101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3856123) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 34069 + ... + 34181.

It is an arithmetic number, because the mean of its divisors is an integer number (124488).

Almost surely, 2^3856125 is an apocalyptic number.

3856125 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3856125 is the 1050-th nonagonal number.

It is an amenable number.

3856125 is an abundant number, since it is smaller than the sum of its proper divisors (4111107).

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

3856125 is a wasteful number, since it uses less digits than its factorization.

3856125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 141 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 3856125 is about 1963.7018612814. The cubic root of 3856125 is about 156.8135913571.

Subtracting from 3856125 its product of digits (7200), we obtain a triangular number (3848925 = T₂₇₇₄).

The spelling of 3856125 in words is "three million, eight hundred fifty-six thousand, one hundred twenty-five".