4004389 has 8 divisors (see below), whose sum is σ = 4137120. Its totient is φ = 3873936.

The previous prime is 4004387. The next prime is 4004393. The reversal of 4004389 is 9834004.

4004389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4004389 - 2¹ = 4004387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4004387) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3447 + ... + 4459.

It is an arithmetic number, because the mean of its divisors is an integer number (517140).

Almost surely, 2^4004389 is an apocalyptic number.

It is an amenable number.

4004389 is a deficient number, since it is larger than the sum of its proper divisors (132731).

4004389 is a wasteful number, since it uses less digits than its factorization.

4004389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 4004389 is about 2001.0969491756. The cubic root of 4004389 is about 158.7981431681.

The spelling of 4004389 in words is "four million, four thousand, three hundred eighty-nine".