Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_83 (number_of_states VARCHAR, population__2009_estimate_ VARCHAR)

### Question ###
How many states has a 2009 estimate population of 27,3 million?

### Accurate SQL ###

SELECT number_of_states FROM table_name_83 WHERE population__2009_estimate_ = "27,3 million"