2003073 has 4 divisors (see below), whose sum is σ = 2670768. Its totient is φ = 1335380.

The previous prime is 2003051. The next prime is 2003081. The reversal of 2003073 is 3703002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2003073 - 2⁶ = 2003009 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2003033) 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, 333843 + ... + 333848.

It is an arithmetic number, because the mean of its divisors is an integer number (667692).

2^2003073 is an apocalyptic number.

It is an amenable number.

2003073 is a deficient number, since it is larger than the sum of its proper divisors (667695).

2003073 is an equidigital number, since it uses as much as digits as its factorization.

2003073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667694.

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

The square root of 2003073 is about 1415.2996149226. The cubic root of 2003073 is about 126.0566009245.

Adding to 2003073 its reverse (3703002), we get a palindrome (5706075).

The spelling of 2003073 in words is "two million, three thousand, seventy-three".