ArmStrong number check

#include <iostream>
#include <string>

using namespace std;


void ArmStrongNumberCheck(int input)
{
    string tempStr = to_string(input);
    int digits = tempStr.size();
    digits;
    double sum = 0;
    for(int i =0; i< digits;i++)
    {
        int tempNumber = tempStr.at(i) - 48;
        sum = sum + pow(tempNumber, digits);
    }
    cout << sum << endl;
    if(sum == input)
    {
        cout << "True" << endl;
    }
    else
    {
        cout << "False" << endl;
    }
}

int main()
{
    int input = 153;
    ArmStrongNumberCheck(input);


}