It is a happy number.
9997303 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-9997303 is a prime.
It is a congruent number.
Almost surely, 29997303 is an apocalyptic number.
9997303 is an equidigital number, since it uses as much as digits as its factorization.
9997303 is an evil number, because the sum of its binary digits is even.
The square root of 9997303 is about 3161.8511982698. The cubic root of 9997303 is about 215.4240988938.
The spelling of 9997303 in words is "nine million, nine hundred ninety-seven thousand, three hundred three".