What is the series number of the episode watched by 10.89 million viewers?
CREATE TABLE table_12146637_1 (series__number INTEGER, us_viewers__millions_ VARCHAR)
SELECT MAX(series__number) FROM table_12146637_1 WHERE us_viewers__millions_ = "10.89"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_12146637_1 (series__number INTEGER, us_viewers__millions_ VARCHAR) Question: What is the series number of the episode watched by 10.89 million viewers? [/INST] SELECT MAX(series__number) FROM table_12146637_1 WHERE us_viewers__millions_ = "10.89" </s>