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 contestants (contestant_number VARCHAR)
TABLE: CREATE TABLE votes (contestant_number VARCHAR)

### Question ###
How many contestants did not get voted?

### Accurate SQL ###

SELECT COUNT(*) FROM contestants WHERE NOT contestant_number IN (SELECT contestant_number FROM votes)