Holy cow! It's happening to you as well? I now have over 40 instances of 717 logged in my notebook for the past 6 months. I constantly see it on the clock, receipts, computer, etc. I'm not sure what yours means, but here is what God told me about mine:
7 = The number in my family before the divorce
1 = The fact that I'm now single
7 = A future day when the wife and children return
Send me your email, I would like to show you some of my signs God has given me.