Twenty-seven

Twenty-seven (27) is the natural number following twenty-six and preceding twenty-eight.

Twenty-seven is a perfect cube, being 3³ = 3 × 3 × 3. It is the magic result of a prime reciprocal magic square of the multiples of 1/7.

A 10,000-day-old person is 27 years old (and some months).

Twenty-seven is also:

• The atomic number of cobalt.
• The total number of books in the New Testament of the Holy Bible.
• The number of letters in the Spanish alphabet
• The current number of Amendments to the United States Constitution.
• The age in years at which rock music stars Jim Morrison, Jimi Hendrix and Kurt Cobain died.
• The code for international direct-dialed phone calls to South Africa.

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See also: twenty-five, twenty-six, twenty-eight, twenty-nine, integer, list of numbers.

This article is about the number. For the year A.D. 27, see 27.