8003989 has 8 divisors (see below), whose sum is σ = 9166400. Its totient is φ = 6846336.

The previous prime is 8003987. The next prime is 8004011. The reversal of 8003989 is 9893008.

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

It is not a de Polignac number, because 8003989 - 2¹ = 8003987 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 (8003981) 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, 3862 + ... + 5560.

It is an arithmetic number, because the mean of its divisors is an integer number (1145800).

Almost surely, 2^8003989 is an apocalyptic number.

It is an amenable number.

8003989 is a deficient number, since it is larger than the sum of its proper divisors (1162411).

8003989 is a wasteful number, since it uses less digits than its factorization.

8003989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2379.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 8003989 is about 2829.1321991028. The cubic root of 8003989 is about 200.0332361432.

The spelling of 8003989 in words is "eight million, three thousand, nine hundred eighty-nine".