When the British troop ship HMT Lancastria was sunk off Saint-Nazaire, France, there were 2477 survivors.
2477 will be the last prime year of the 25th century, occurring with 22 years remaining. An earlier last prime year will not occur until the 85th century (8467)!
Revised Statute 2477 was enacted by the United States
Congress to encourage the settlement of the Western United
States by the development of a system of highways.
(There is one curio for this number that has not yet been approved by an editor.)