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_2501754_4 ( episode__number INTEGER, viewing_figures_millions VARCHAR, prod_code VARCHAR )

### Question ###
What is the lowest episode number with 6.19 million viewers and a production code of icec487y?

### Accurate SQL ###

SELECT MIN(episode__number) FROM table_2501754_4 WHERE viewing_figures_millions = "6.19" AND prod_code = "ICEC487Y"