+999 is the [natural number](/wiki/Natural_Number) that follows 998 and precedes 1000. Beyond its mathematical place, it serves as a primary [emergency number](/wiki/Emergency_Number) in many regions, a call for immediate help. This three-digit sequence holds diverse meaning, from numerical order to urgent alert.
+## See also
+- [Integer](/wiki/Integer)
+- [Public Safety](/wiki/Public_Safety)
+- [Criticality](/wiki/Criticality)
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