7776

Number
$7776$ (seven thousand, seven hundred and seventy-six) is:
 * $6^5$


 * The $6$th fifth power after $1$, $32$, $243$, $1024$, $3125$:
 * $7776 = 6 \times 6 \times 6 \times 6 \times 6$


 * The $5$th power of $6$ after $(1)$, $6$, $36$, $216$, $1296$:
 * $7776 = 6^5$