846

846 is a natural number that comes after 845 and before 847. It is an even, composite number in base 10.

In mathematics, 846 factors as 2 × 3^2 × 47. It has 12 positive divisors: 1, 2, 3, 6, 9, 18, 47, 94, 141, 282, 423, 846. The sum of its proper divisors is 1026, so 846 is an abundant number with abundance 180. The digit sum is 18, which makes 846 a Harshad (Niven) number, since 846 divided by 18 equals 47.

In other representations, 846 is written in binary as 1101001110, in octal as 1516, and in hexadecimal as 34E. In Roman numerals it is DCCCXLVI.

As a year, 846 CE and 846 BCE appear in historical sources, but without a single universally defining event. The number is commonly used in cataloguing, numbering systems, and various model identifiers, reflecting its role as a standard integer in arithmetic and notation.