723003 has 8 divisors (see below), whose sum is σ = 968016. Its totient is φ = 480000.

The previous prime is 722983. The next prime is 723029. The reversal of 723003 is 300327.

723003 is a nontrivial binomial coefficient, being equal to C(1203, 2).

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

It is not a de Polignac number, because 723003 - 2⁵ = 722971 is a prime.

It is a Smith number, since the sum of its digits (15) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

723003 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (723043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 903 + ... + 1503.

It is an arithmetic number, because the mean of its divisors is an integer number (121002).

2⁷²³⁰⁰³ is an apocalyptic number.

723003 is the 1202-nd triangular number.

723003 is a deficient number, since it is larger than the sum of its proper divisors (245013).

723003 is a wasteful number, since it uses less digits than its factorization.

723003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005.

The product of its (nonzero) digits is 126, while the sum is 15.

The square root of 723003 is about 850.2958308730. The cubic root of 723003 is about 89.7525300404.

The spelling of 723003 in words is "seven hundred twenty-three thousand, three", and thus it is an iban number.