9468649

This number is a composite.

The only 7-digit palindrome 3-sphenic number that consists of all the composite digits only, i.e., 9468649 = 101 x 241 x 389. Note that, both the concatenations of its prime factors, in order and reverse order, i.e., 101241389 and 389241101, are primes. [Loungrides]