3964478 has 16 divisors (see below), whose sum is σ = 6835200. Its totient is φ = 1689336.

The previous prime is 3964463. The next prime is 3964481. The reversal of 3964478 is 8744693.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2075 + ... + 3497.

It is an arithmetic number, because the mean of its divisors is an integer number (427200).

Almost surely, 2^3964478 is an apocalyptic number.

3964478 is a deficient number, since it is larger than the sum of its proper divisors (2870722).

3964478 is a wasteful number, since it uses less digits than its factorization.

3964478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631.

The product of its digits is 145152, while the sum is 41.

The square root of 3964478 is about 1991.0996961478. The cubic root of 3964478 is about 158.2688101514.

The spelling of 3964478 in words is "three million, nine hundred sixty-four thousand, four hundred seventy-eight".