The number "688" is a three-digit integer that follows 687 and precedes 689. It is an even number, as it ends with an 8, and can be divided by 2 without leaving a remainder. In mathematics, it can be factored into prime numbers, specifically 2 and 344, or expressed in various numeral systems. In the context of numerology, the number 688 may hold significance for some, as it can be analyzed for its vibrational qualities. Additionally, in computer science, "688" could represent a specific code or identifier, depending on the system or application in use.