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_23915973_1 (power_kw VARCHAR, frequency VARCHAR)

### Question ###
How many power kw have a frequency of 93.7 mhz?

### Accurate SQL ###

SELECT COUNT(power_kw) FROM table_23915973_1 WHERE frequency = "93.7 MHz"