### 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 = 335160

^{2}- 335159

^{2}= 25788

^{2}- 25775

^{2}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.

670319

^{2}= 257815

^{2}+ 618756

^{2}is the sum of 2 positive squares in 1 way.

670319

^{2}is the sum of 3 positive squares.

670319 is a divisor of 1307

^{348}- 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.

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