Found with PFGW Version 3.7.5

4607^5850-5850^4607 is 2-PRP! (15.2286s+0.0022s)
4607^5850-5850^4607 is 3-PRP! (15.5873s+0.0022s)
4607^5850-5850^4607 is 5-PRP! (17.1041s+0.0022s)
4607^5850-5850^4607 is 7-PRP! (15.1361s+0.0021s)
4607^5850-5850^4607 is 11-PRP! (15.3845s+0.0028s)

Primality testing 4607^5850-5850^4607 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 7
Running N+1 test using discriminant 23, base 1+sqrt(23)
Calling N+1 BLS with factored part 0.06% and helper 0.04% (0.22% proof)
4607^5850-5850^4607 is Fermat and Lucas PRP! (78.6258s+0.0042s)

To be completed...