What does the number nine have to do with chinese mythology, culture or chinese dragons.?
The Chinese dragon is traditionally also the embodiment of the concept of yang (male) and associated with the weather as the bringer of rain and water in an agriculturally water-driven nation. Its female counterpart is the Fenghuang (usually translated as a phoenix). The number nine is considered lucky in China as it is the largest possible single digit, and Chinese dragons are frequently connected with it. For example, a Chinese dragon is normally described in terms of nine attributes and usually has 117 scales – 81 (9×9) Yang and 36 (9×4) Yin.
