Who called from 3604504873

I have been getting calls from this number. When the phone is answered there is a "Hello" then "Goodbye"

It's almost like they are checking to see if I am home.

This number called my number and asked for a person that had a different first name and same last name as our household.   Auto message asked to either press 1 if you are the person, two to hold to get the person, three if they had the wrong number, and four to speak to a representative.  I pressed three and the automessage asked me to hold for a representative so they could update their records.   Assuming it was a scam, I hung up.