529983

Appears in sequences

• Lesser of two consecutive numbers each divisible by a sixth power.at n=23A068784
• a(n) = (n^2-1)^2-1.at n=27A178392
• Near 2-hyperperfect numbers: numbers k such that sigma(k) - 3*k/2 - 1/2 is a proper divisor of k.at n=29A305616
• Least number k such that A060778(k) = n.at n=6A364890
• Numbers k such that A060778(k) = 7.at n=0A364903