This number is a composite.
The brilliant number 1927 = 41 * 47 = 2^11 - 11^2. Note also that 1927 is an emirpimes because its reversal 7291 = 23 * 317 is also semiprime. Famous prime-researching mathematicians born in 1927 include Alexander Ivanovich Skopin (1927-2003) who studied groups of prime-power exponent; Yutaka Taniyama (1927-1958) whose conjecture was central to the proof of Fermat's Last Theorem by Wiles; and John Leslie Britton (1927-1994) expert on the word problem for groups. [Post]