This number is a prime.

+ 732504869 is the only cyclops emirp with all four single-digit primes on the one side and all four single-digit composites on the other. If we add one to the left and to the right end we will obtain the pandigital cyclops emirp 17325048691 with all five single-digit non-primes on the one side and and all five single digit non-composites on the other. [Petrov]

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