3904894 has 32 divisors (see below), whose sum is σ = 7128576. Its totient is φ = 1568160.

The previous prime is 3904877. The next prime is 3904897. The reversal of 3904894 is 4984093.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3904897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21484 + ... + 21664.

It is an arithmetic number, because the mean of its divisors is an integer number (222768).

Almost surely, 2^3904894 is an apocalyptic number.

3904894 is a deficient number, since it is larger than the sum of its proper divisors (3223682).

3904894 is a wasteful number, since it uses less digits than its factorization.

3904894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 3904894 is about 1976.0804639488. The cubic root of 3904894 is about 157.4719056297.

The spelling of 3904894 in words is "three million, nine hundred four thousand, eight hundred ninety-four".