6403303 has 2 divisors, whose sum is σ = 6403304. Its totient is φ = 6403302.

The previous prime is 6403297. The next prime is 6403321. The reversal of 6403303 is 3033046.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6403303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6403333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3201651 + 3201652.

It is an arithmetic number, because the mean of its divisors is an integer number (3201652).

Almost surely, 2^6403303 is an apocalyptic number.

6403303 is a deficient number, since it is larger than the sum of its proper divisors (1).

6403303 is an equidigital number, since it uses as much as digits as its factorization.

6403303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 6403303 is about 2530.4748566228. The cubic root of 6403303 is about 185.6954877846.

Adding to 6403303 its reverse (3033046), we get a palindrome (9436349).

The spelling of 6403303 in words is "six million, four hundred three thousand, three hundred three".