It is a sphenic number, since it is the product of 3 distinct primes.
822 is an admirable number.
It is a plaindrome in base 8, base 9, base 11, base 15 and base 16.
It is a nialpdrome in base 10.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 822.
2822 is an apocalyptic number.
822 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
822 is a wasteful number, since it uses less digits than its factorization.
822 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 142.
The square root of 822 is about 28.6705423737. The cubic root of 822 is about 9.3675051209.
The spelling of 822 in words is "eight hundred twenty-two", and thus it is an aban number.