Atum was especially worshipped at Heliopolis, where he was the head of the Ennead cult. He was represented by the black bull Mnewer, who bore the sun disk and uraeus between its horns. As the father of the pharaoh, he played an important part in the coronation rites. Atum was depicted as old man symbolizing the setting sun, but he also appeared also a snake, a scarab, and a mangust (pharaoh hat). The snake, bull, lion, lizard and ichneumon are his sacred animals.
The Memphite creation myth stated that Atum was conceived in the heart of Ptah and was created by his word. Literally, "he who completes, or perfects".