Completely brandable, so it has potential... 365's are one of the few 'number' domains that seem to do well e.g .. bet365, live365 .. all popular sites.
An appraisal here would be more based on potential so I will give it a low-mid $XX as of right now (possibly more if you can find the right buyer.) Since almost all good hosting domains are taken, you may actually get your chance to find the right buyer and possibly get more for it.