7921

Number
$7921$ (seven thousand, nine hundred and twenty-one) is:


 * $89^2$


 * The $89$th square number after $1$, $4$, $9$, $16$, $25$, $36$, $\ldots$, $6084$, $6241$, $6400$, $6561$, $6724$, $6889$, $7056$, $7225$, $7396$, $7569$, $7744$
 * $7921 = 89 \times 89$