695

695 is a natural number that follows 694 and precedes 696. In mathematics, it is an odd composite number with prime factorization 5 × 139, making it a semiprime. Its divisors are 1, 5, 139, and 695. The sum of its digits is 20, giving a digital root of 2, and it is not divisible by 3 or 9.

In various numeral systems, 695 is represented as decimal 695, binary 1010110111, and hexadecimal 2B7. In Roman numerals, it is written as DCXCV.

As a year, 695 CE falls in the late seventh century. This era saw important historical currents across different regions, including the expansion and consolidation of powers in the Islamic world and the ongoing developments of the Tang dynasty in China, along with various political changes in Europe. Specific events tied to the year can vary by source and region, and not all cultures have continuous, detailed records for that exact year.

Overall, 695 is primarily notable in number theory as a semiprime with a straightforward factorization and in its common representations across numeral systems. When referenced as a year, it sits within the broader context of late antiquity and early medieval history.