ISNUMBER
Checks if cell contains a number or not to which value is referring
Syntax of Excel Isnumber formula:
=ISNUMBER(value)
In words:
=Check if cell contains number(to which this value is referring)
Examples of Excel Isnumber formula
=ISNUMBER(HS76) if returns false it means it is either empty or contains textual data instead of plain numbers
=ISNUMBER(“September 22”) will return FALSE