Dealt royal flush bonus

There's a 25c game that has 97% return. Normal royal flush at $1000, but if you get dealt the royal the casino has a promotion where you will get a bonus of $14000 to make it a net win of $15000. How much does this affect the overall EV of the play?

I get 1/649740 * 15000 = 0.023, so does this mean it's increasing my overall EV by 2.3 cents per hand, and .023/1.25 = 1.84% -- an overall EV increase from 97% to 98.84%?

Just want a double check on my math here...

Math is close enough ($14,000 is the Δ, so about an 1.7% additional return) and the game sounds unplayable from an AP perspective.

Whoops, thanks for the correction, and yeah. I was initially happy but then figured it wasn't that great. Thanks!