Properties of the number 670319:
670319 = 13 × 51563 is semiprime and squarefree.670319 has 2 distinct prime factors, 4 divisors, 17 antidivisors and 618744 totatives.
670319 has an emirpimes digit sum 26 in base 10.
670319 = 3351602 - 3351592 = 257882 - 257752 is the difference of 2 nonnegative squares in 2 ways.
670319 is the difference of 2 positive pentagonal numbers in 2 ways.
670319 is not the sum of 3 positive squares.
6703192 = 2578152 + 6187562 is the sum of 2 positive squares in 1 way.
6703192 is the sum of 3 positive squares.
670319 is a divisor of 1307348 - 1.
670319 = '6703' + '19' is the concatenation of 2 prime numbers.
670319 = '6' + '70319' is the concatenation of 2 semiprime numbers.
670319 is an emirpimes in (at least) the following bases: 2, 4, 5, 6, 13, 14, 15, 16, 17, 21, 26, 28, 34, 35, 42, 44, 49, 54, 56, 59, 60, 63, 69, 70, 71, 72, 73, 75, 78, 81, 83, 86, 87, 89, 91, 92, 95, and 99.