Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_27653752_1 (ppi__pixels_per_inch__ VARCHAR, ppcm__pixels_per_cm__ VARCHAR)
### Question:
How many different PPI does the model with ppcm of 87 have?
### Answer:
SELECT COUNT(ppi__pixels_per_inch__) FROM table_27653752_1 WHERE ppcm__pixels_per_cm__ = 87