3943804 has 6 divisors (see below), whose sum is σ = 6901664. Its totient is φ = 1971900.

The previous prime is 3943799. The next prime is 3943829. The reversal of 3943804 is 4083493.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492972 + ... + 492979.

Almost surely, 2^3943804 is an apocalyptic number.

It is an amenable number.

3943804 is a deficient number, since it is larger than the sum of its proper divisors (2957860).

3943804 is a wasteful number, since it uses less digits than its factorization.

3943804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985955 (or 985953 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 3943804 is about 1985.9013067119. The cubic root of 3943804 is about 157.9932166078.

It can be divided in two parts, 394380 and 4, that added together give a square (394384 = 628²).

The spelling of 3943804 in words is "three million, nine hundred forty-three thousand, eight hundred four".