The number "9998" is an integer that comes just before 9999 and after 9997. It is an even number, as it ends in an 8, and can be divided by 2 without leaving a remainder. In the context of mathematics, it is often used in various calculations and can be expressed in different numeral systems, such as binary or hexadecimal. In terms of its properties, 9998 is not a prime number because it has divisors other than 1 and itself. For example, it can be factored into 2 and 4999. This number can also be relevant in fields like computer science, where large integers are frequently used in algorithms and data processing.