The word four has four letters. In the English language there is no other number whose number of letters is equal to its value.
More Language Facts
Sanskrit is the mother of all higher languages. Sanskrit is the most precise and therefore suitable language for the computer software - a report in Forbes magazine.
The only 15 letter word that can be spelled without repeating a letter is uncopyrightable.
The sentence: "The quick brown fox jumps over the lazy dog" uses every letter of the alphabet.