3905225 has 12 divisors (see below), whose sum is σ = 4999680. Its totient is φ = 3022800.

The previous prime is 3905221. The next prime is 3905263. The reversal of 3905225 is 5225093.

It is not a de Polignac number, because 3905225 - 2² = 3905221 is a prime.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3905194 and 3905203.

It is not an unprimeable number, because it can be changed into a prime (3905221) 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 11 ways as a sum of consecutive naturals, for example, 1745 + ... + 3294.

It is an arithmetic number, because the mean of its divisors is an integer number (416640).

Almost surely, 2^3905225 is an apocalyptic number.

It is an amenable number.

3905225 is a deficient number, since it is larger than the sum of its proper divisors (1094455).

3905225 is a wasteful number, since it uses less digits than its factorization.

3905225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5080 (or 5075 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 3905225 is about 1976.1642138243. The cubic root of 3905225 is about 157.4763548950.

The spelling of 3905225 in words is "three million, nine hundred five thousand, two hundred twenty-five".