2000003 has 2 divisors, whose sum is σ = 2000004. Its totient is φ = 2000002.

The previous prime is 1999993. The next prime is 2000029. The reversal of 2000003 is 3000002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2000003 - 2²⁰ = 951427 is a prime.

It is an Ulam number.

2000003 is a modest number, since divided by 3 gives 2 as remainder.

It is not a weakly prime, because it can be changed into another prime (2000083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000001 + 1000002.

It is an arithmetic number, because the mean of its divisors is an integer number (1000002).

2^2000003 is an apocalyptic number.

2000003 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000003 is an equidigital number, since it uses as much as digits as its factorization.

2000003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 5.

The square root of 2000003 is about 1414.2146230329. The cubic root of 2000003 is about 125.9921679855.

Adding to 2000003 its reverse (3000002), we get a palindrome (5000005).

Subtracting 2000003 from its reverse (3000002), we obtain a palindrome (999999).

The spelling of 2000003 in words is "two million, three", and thus it is an aban number and an uban number.