7003 has 4 divisors (see below), whose sum is σ = 7200. Its totient is φ = 6808.

The previous prime is 7001. The next prime is 7013. The reversal of 7003 is 3007.

7003 is nontrivially palindromic in base 2.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3007 = 31 ⋅97.

It is a cyclic number.

It is not a de Polignac number, because 7003 - 2¹ = 7001 is a prime.

It is a Duffinian number.

7003 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28 + ... + 121.

It is an arithmetic number, because the mean of its divisors is an integer number (1800).

2⁷⁰⁰³ is an apocalyptic number.

7003 is a deficient number, since it is larger than the sum of its proper divisors (197).

7003 is a wasteful number, since it uses less digits than its factorization.

7003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196.

The product of its (nonzero) digits is 21, while the sum is 10.

The square root of 7003 is about 83.6839291621. The cubic root of 7003 is about 19.1320441963.

It can be divided in two parts, 700 and 3, that added together give a triangular number (703 = T₃₇).

The spelling of 7003 in words is "seven thousand, three", and thus it is an iban number.