877

877 is a natural number that follows 876 and precedes 878. It is an odd prime number, meaning its only positive divisors are 1 and itself. In base representations, 877 equals 0x36D in hexadecimal and 1101101101 in binary. In Roman numerals it is written as DCCCLXXVII.

As a calendar year, 877 appears in both the Common Era (CE) and Before Common Era (BCE) contexts. In the CE tradition it falls in the 9th century, while 877 BCE designates a year in the late 2nd millennium BCE. These dates are used in historical chronology and scholarly timelines.

In telecommunications, 877 is a toll-free area code within the North American Numbering Plan (NANP). It is used for toll-free telephone numbers in the United States and Canada, alongside other prefixes such as 800, 888, 866, 855, 844, and 833. Toll-free codes are typically employed by businesses and organizations to provide free-to-call services for customers.