9703

9703 = 31 x 313.

9703 is 302303 in base 5. It is 40201 in base 7.

9703 is a number of the form n³ + n² + 1 for n = 21 (A098547).

9703 is a number that cannot be written as a sum of three squares.

9703 divides 98³ - 1.

Source: OEIS