3944906 has 16 divisors (see below), whose sum is σ = 6921024. Its totient is φ = 1651104.

The previous prime is 3944881. The next prime is 3944909. The reversal of 3944906 is 6094493.

It is a happy number.

3944906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (35) 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 (3944909) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2675 + ... + 3878.

It is an arithmetic number, because the mean of its divisors is an integer number (432564).

Almost surely, 2^3944906 is an apocalyptic number.

3944906 is a deficient number, since it is larger than the sum of its proper divisors (2976118).

3944906 is a wasteful number, since it uses less digits than its factorization.

3944906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6605.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 3944906 is about 1986.1787432152. The cubic root of 3944906 is about 158.0079310231.

The spelling of 3944906 in words is "three million, nine hundred forty-four thousand, nine hundred six".