3942806 has 16 divisors (see below), whose sum is σ = 6924960. Its totient is φ = 1648320.

The previous prime is 3942781. The next prime is 3942839. The reversal of 3942806 is 6082493.

3942806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2861 + ... + 4008.

It is an arithmetic number, because the mean of its divisors is an integer number (432810).

Almost surely, 2^3942806 is an apocalyptic number.

3942806 is a deficient number, since it is larger than the sum of its proper divisors (2982154).

3942806 is a wasteful number, since it uses less digits than its factorization.

3942806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6919.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 3942806 is about 1985.6500195150. The cubic root of 3942806 is about 157.9798884833.

The spelling of 3942806 in words is "three million, nine hundred forty-two thousand, eight hundred six".