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mysql - Selecting/casting output as integer in SQL

I'm working on a site that requires me to display a graph of the average number per day of a user input. I have a SQL query already that returns this info to me:

SELECT sum(number)/count(number) as average, date FROM stats WHERE * GROUP BY date

This gives me the result I am looking for, but the result is given with three decimals precision. I want to round of this number. I could do it in PHP or my template engine, of course, but I was curious if there was a way to do this all in the database.

Is there a way to cast an output as an integer (in MySQL)?

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SELECT 
  CAST(sum(number)/count(number) as UNSIGNED) as average, 
  date 
FROM stats 
WHERE * 
GROUP BY date

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