---
title: isNumber
framework: swift
role: symbol
role_heading: Instance Property
path: swift/character/isnumber
---

# isNumber

A Boolean value indicating whether this character represents a number.

## Declaration

```swift
var isNumber: Bool { get }
```

## Discussion

Discussion For example, the following characters all represent numbers: “7” (U+0037 DIGIT SEVEN) “⅚” (U+215A VULGAR FRACTION FIVE SIXTHS) “㊈” (U+3288 CIRCLED IDEOGRAPH NINE) “𝟠” (U+1D7E0 MATHEMATICAL DOUBLE-STRUCK DIGIT EIGHT) “๒” (U+0E52 THAI DIGIT TWO)

## See Also

### Checking a Character’s Numeric Properties

- [isWholeNumber](swift/character/iswholenumber.md)
- [wholeNumberValue](swift/character/wholenumbervalue.md)
- [isHexDigit](swift/character/ishexdigit.md)
- [hexDigitValue](swift/character/hexdigitvalue.md)