3900825 has 24 divisors (see below), whose sum is σ = 7167200. Its totient is φ = 2080080.

The previous prime is 3900817. The next prime is 3900829. The reversal of 3900825 is 5280093.

It is not a de Polignac number, because 3900825 - 2³ = 3900817 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (3900829) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2215 + ... + 3564.

Almost surely, 2^3900825 is an apocalyptic number.

It is an amenable number.

3900825 is a deficient number, since it is larger than the sum of its proper divisors (3266375).

3900825 is a wasteful number, since it uses less digits than its factorization.

3900825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5798 (or 5787 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 3900825 is about 1975.0506322624. The cubic root of 3900825 is about 157.4171900281.

The spelling of 3900825 in words is "three million, nine hundred thousand, eight hundred twenty-five".