11,597

Number
$11 \, 597$ (eleven thousand, five hundred and ninety-seven) is:


 * The $1396$th prime number


 * The $2$nd after $11 \, 593$ of a sequence of consecutive prime numbers all of the form $4 n + 1$:
 * $11 \, 597 = 4 \times 2899 + 1$