3939804 has 36 divisors (see below), whose sum is σ = 10865400. Its totient is φ = 1193760.

The previous prime is 3939791. The next prime is 3939811. The reversal of 3939804 is 4089393.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 in 11 ways as a sum of consecutive naturals, for example, 4579 + ... + 5370.

Almost surely, 2^3939804 is an apocalyptic number.

It is an amenable number.

3939804 is an abundant number, since it is smaller than the sum of its proper divisors (6925596).

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

3939804 is a wasteful number, since it uses less digits than its factorization.

3939804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9970 (or 9965 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 3939804 is about 1984.8939518271. The cubic root of 3939804 is about 157.9397837085.

The spelling of 3939804 in words is "three million, nine hundred thirty-nine thousand, eight hundred four".