Kanakht Khaemwaset Nebty Wadjrenput Neferneferuamun Heqamaat Sehetepnetjeru Nesubity Menkheperatum Netjermose AtemThe mighty bull, Arising in Thebes, He of the two ladies, Flourishing of years, Beauty of the beauties of Amun, Ruler of truth, Who pleases the gods, He of the sedge and the bee, Lord of the two lands, Enduring of form is Atum, Son of the gods, Atem
The above is Atem's full name with all the royal titles and such. Subject to chance as the mun acquires better reference materials. Whether or not he actually refers to himself as such depends on his whims. Normally he would pay someone to say that mouthful however.
FTR Atem is merely an alternate spelling of the creator god Atum. I treat them as the same thing.
Atem wears a ring on the third finger of his left hand. Egyptians may have originated the practice of wedding rings, believing that there was an artery in that finger that connects directly with the heart. As such Atem is married (honestly there is no good reason why he wouldn't be either) but like many unions of people in such a position, it was one of convenience and politics.
Pharaohs in the new kingdom were expected to campaign upon ascension as the empire liked to test the abilities of the new king. As such Atem has some military experience in addition to being able to use magic which appears to be reserved for an elite minority in memory world. He's familiar with the basics of swordsmanship and archery and knows just a few things about horses. Wrestling was also a common pastime in ancient Egypt.
He really likes fruit. No particular reason.