Compare 664667 vs 664687

Property	664667	664687
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	664667¹	664687¹
Prime factorization	664667	664687
Divisors count	2	2
Divisors	1, 664667	1, 664687
Number of properties	8	7
Additive primes		21049th
Chen primes	21091st
Cousin primes (1st member)		5814th
Cousin primes (2nd member)	5813th
Isolated primes		42282nd
Lucky primes		6168th
Primes	53922nd	53925th
Prime quadruplets (3rd member)	129th
Prime triplets (1st member)		2122nd
Prime triplets (2nd member)	2121st
Prime triplets (3rd member)	2120th
Sexy primes (1st member)		11639th
Sexy primes (2nd member)	11637th
Twin primes (1st member)	5822nd
Roman numberals
Base 2	10100010010001011011₂	10100010010001101111₂
Base 3	1020202202022₃	1020202210001₃
Base 4	2202101123₄	2202101233₄
Base 5	132232132₅	132232222₅
Base 6	22125055₆	22125131₆
Base 7	5435543₇	5435602₇
Base 8	2422133₈	2422157₈
Base 9	1222668₉	1222701₉
Base 10	664667₁₀	664687₁₀
Base 11	414413₁₁	414431₁₁
Base 12	28078b₁₂	2807a7₁₂
Base 13	1a36c3₁₃	1a370a₁₃
Base 14	134323₁₄	134339₁₄
Base 15	d1e12₁₅	d1e27₁₅
Base 16	a245b₁₆	a246f₁₆