3904825 has 12 divisors (see below), whose sum is σ = 5053248. Its totient is φ = 2987600.

The previous prime is 3904801. The next prime is 3904829. The reversal of 3904825 is 5284093.

It is a de Polignac number, because none of the positive numbers 2^k-3904825 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3904829) 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, 2821 + ... + 3970.

It is an arithmetic number, because the mean of its divisors is an integer number (421104).

Almost surely, 2^3904825 is an apocalyptic number.

It is an amenable number.

3904825 is a deficient number, since it is larger than the sum of its proper divisors (1148423).

3904825 is a wasteful number, since it uses less digits than its factorization.

3904825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6824 (or 6819 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 3904825 is about 1976.0630050684. The cubic root of 3904825 is about 157.4709781077.

The spelling of 3904825 in words is "three million, nine hundred four thousand, eight hundred twenty-five".