3964938 has 16 divisors (see below), whose sum is σ = 8203680. Its totient is φ = 1276016.

The previous prime is 3964937. The next prime is 3964943. The reversal of 3964938 is 8394693.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 3964938.

It is not an unprimeable number, because it can be changed into a prime (3964937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11220 + ... + 11567.

It is an arithmetic number, because the mean of its divisors is an integer number (512730).

Almost surely, 2^3964938 is an apocalyptic number.

3964938 is an abundant number, since it is smaller than the sum of its proper divisors (4238742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3964938 is a wasteful number, since it uses less digits than its factorization.

3964938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22821.

The product of its digits is 139968, while the sum is 42.

The square root of 3964938 is about 1991.2152068523. The cubic root of 3964938 is about 158.2749312462.

The spelling of 3964938 in words is "three million, nine hundred sixty-four thousand, nine hundred thirty-eight".