34

This number is a composite.

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7^34+34 is the smaller of only two non-titanic primes of form 7^n+n, (the other is for n=48). [Loungrides]

The number of the distinct-digit primes each consisting of all of the odd digits. These are: 13597, 13759, 15739, 15937, 15973, 17359, 17539, 19753, 31957, 37159, 37591, 37951, 39157, 51973, 53197, 53719, 53791, 53917, 57139, 57193, 71359, 71593, 73951, 75193, 75391, 75913, 75931, 79153, 79531, 91573, 91753, 95317, 95713, 95731. [Loungrides]