Are there any ways to stop an app from repeatedly installing itself on my cell phone?

There is an app that keeps appearing on my phone. I delete it several times per day, but it continues to re-appear. What can I do to stop it from coming back?

Some of the things I've tried so far: Restarting, changing my google password, changing settings to not let apps auto-update, doing a virus scan.
Are there any ways to stop an app from repeatedly installing itself on my cell phone?
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