3943478 has 32 divisors (see below), whose sum is σ = 7637760. Its totient is φ = 1481760.

The previous prime is 3943451. The next prime is 3943481. The reversal of 3943478 is 8743493.

3943478 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 15 ways as a sum of consecutive naturals, for example, 4025 + ... + 4907.

It is an arithmetic number, because the mean of its divisors is an integer number (238680).

Almost surely, 2^3943478 is an apocalyptic number.

3943478 is a deficient number, since it is larger than the sum of its proper divisors (3694282).

3943478 is a wasteful number, since it uses less digits than its factorization.

3943478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932.

The product of its digits is 72576, while the sum is 38.

The square root of 3943478 is about 1985.8192264151. The cubic root of 3943478 is about 157.9888631791.

The spelling of 3943478 in words is "three million, nine hundred forty-three thousand, four hundred seventy-eight".