3904785 has 24 divisors (see below), whose sum is σ = 7126080. Its totient is φ = 1972512.

The previous prime is 3904759. The next prime is 3904801. The reversal of 3904785 is 5874093.

3904785 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3904785 - 2⁵ = 3904753 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1429 + ... + 3138.

It is an arithmetic number, because the mean of its divisors is an integer number (296920).

Almost surely, 2^3904785 is an apocalyptic number.

It is an amenable number.

3904785 is a deficient number, since it is larger than the sum of its proper divisors (3221295).

3904785 is a wasteful number, since it uses less digits than its factorization.

3904785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4597 (or 4594 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 3904785 is about 1976.0528839077. The cubic root of 3904785 is about 157.4704404088.

The spelling of 3904785 in words is "three million, nine hundred four thousand, seven hundred eighty-five".