Fatto matematico: 2806 is the number of semigroups of order 6 with 2 idempotents.
Trivia: 2806 is a boring number.
Data storica: September 6th is the day in 2009 that the ro-ro ferry SuperFerry 9 sinks off the Zamboanga Peninsula in the Philippines with 971 persons aboard; all but ten are rescued.