Fatto generale: 87 is the number of tools in the Wenger Swiss Army Knife version XXL, listed in the Guinness Book of World Records as the world's most multi-functional penknife.
Fatto matematico: 87 is the sum of the squares of the first four primes.
Trivia: 87 is the number of tools in the Wenger Swiss Army Knife version XXL, listed in the Guinness Book of World Records as the world's most multi-functional penknife.
Data storica: March 27th is the day in 1329 that Pope John XXII issues his In Agro Dominico condemning some writings of Meister Eckhart as heretical.