9003 has 4 divisors (see below), whose sum is σ = 12008. Its totient is φ = 6000.

The previous prime is 9001. The next prime is 9007. The reversal of 9003 is 3009.

9003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 9003 - 2¹ = 9001 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9003.

It is not an unprimeable number, because it can be changed into a prime (9001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1498 + ... + 1503.

It is an arithmetic number, because the mean of its divisors is an integer number (3002).

2⁹⁰⁰³ is an apocalyptic number.

9003 is a deficient number, since it is larger than the sum of its proper divisors (3005).

9003 is a wasteful number, since it uses less digits than its factorization.

9003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3004.

The product of its (nonzero) digits is 27, while the sum is 12.

The square root of 9003 is about 94.8841398760. The cubic root of 9003 is about 20.8031491780.

It can be divided in two parts, 900 and 3, that added together give a triangular number (903 = T₄₂).

The spelling of 9003 in words is "nine thousand, three".