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_221398_1 ( prefecture VARCHAR, area__km²_ VARCHAR )

### Question ###
How many prefectures have an area of 361.719 kilometers squared?

### Accurate SQL ###

SELECT COUNT(prefecture) FROM table_221398_1 WHERE area__km²_ = "361.719"