Short answers, pulled from the story.
The name Khepri appeared in the Pyramid texts often accompanied by a scarab hieroglyph to clarify its meaning. This ancient Egyptian verb derives from the root word ́hpr which means to develop or create.
Egyptians believed scarab beetles were created from nothingness based on their biological process of laying eggs within dung balls. They observed that the sun is reborn every day from darkness linking the celestial body to the insect.
No cult existed devoted solely to him because he was seen as a manifestation of the more prominent solar deity Ra. He functioned as a solar deity connected to the rising sun and the mythical creation of the world.
Three major funerary texts feature appearances by Khepri: the Amduat, the Book of Caverns, and the Book of Gates. Each text describes how the lifeless corpse of Khepri joins with the soul of Ra during the underworld journey.
Some idols were made of faience an amalgamated material composed of quartz and alkaline salts cheap to produce. Others utilized turquoise a rare stone highly sought after by collectors for its blue coloration signifying the sky or heavens.