Numbers / 587

The Number 587

587 is prime: only 1 and 587 divide it evenly; the next prime after 587 is 593. 587's proper divisors total just 1, 586 short of 587, the deficient case most of 587's neighbors share too. 587 has a digit sum of 20; for 587, the digital root works out to 2. 587 shares no factor with 2-12; 587's own divisors start beyond that range. 587 is 1001001011 in binary and 24B in hex; as a Roman numeral it's DLXXXVII.