1712 is the number of regions into which the complex plane is cut by drawing lines between all pairs of 16th roots of unity ( A006533).
1712 is 4664 in base 7.
1712 is the sum of eight consecutive primes ( A127335): 1712 = 193 + 197 + 199 + 211 + 223 + 227 + 229 + 233.
Each digit of 1712 occurs at least once in 17124 = 8,590,432,731,136 ( A121321).
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjY7cT4QCf4ksqcLriIkoZKKeVDQF3wsYRW7D2W3ypu6SWaehpFAaUcONEt2tv4kb1op_Mg4WzeScBfYQIMgRZrvQg7GDaBaPx4SK6QtnHiOOdkZQXMs_MwQKeF-H0GdTQ-NDP3kmM7Gbw/s200/n1712.jpg)
Source: What's Special About This Number?
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