678976

Appears in sequences

• Squares which when subtracted from their reverse form nonzero squares.at n=6A152071
• Squares equal to the difference between two successive primes of the form n^2+1.at n=19A216330
• The squares related to the strictly increasing subsequence of A053667(n), n >= 1.at n=24A248648
• Primitive numbers whose abundance is positive and odd.at n=36A259231
• Numbers that have exactly one Zumkeller divisor but are not Zumkeller.at n=28A376877