The number "997" is a three-digit integer that follows 996 and precedes 998. It is an odd number and is classified as a prime number, meaning it has no positive divisors other than 1 and itself. In mathematics, prime numbers are significant because they are the building blocks of whole numbers. In the context of mathematics, 997 is often used in various calculations and number theory studies. It is also notable in computer science for its applications in algorithms and cryptography, where prime numbers play a crucial role in securing data and ensuring efficient processing.