Today is 7 day of the year.

7 is prime.

7 is the third lazy caterer number.

Since 2^7 -1 = 128 - 1 = 127 is prime, then 7 is a Mersenne prime.

7 is the only prime number anywhere in the universe that is one less than a perfect cube.

7 is a happy number.

7! x 2 = 10,080 which is the number of minutes in 7 days or one week.

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