96577
This number is a composite.
The only 5-digit 4-almost prime, product of successive prime factors, i.e., 96577 = 13 × 17 × 19 × 23, whose the reversal, i.e., 77569, is prime. [Loungrides]
(There is one curio for this number that has not yet been approved by an editor.)
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell