822081 has 16 divisors (see below), whose sum is σ = 1197504. Its totient is φ = 498624.

The previous prime is 822079. The next prime is 822113. The reversal of 822081 is 180228.

It is not a de Polignac number, because 822081 - 2¹ = 822079 is a prime.

It is a super-2 number, since 2×822081² = 1351634341122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (822011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4075 + ... + 4271.

It is an arithmetic number, because the mean of its divisors is an integer number (74844).

2⁸²²⁰⁸¹ is an apocalyptic number.

It is an amenable number.

822081 is a deficient number, since it is larger than the sum of its proper divisors (375423).

822081 is a wasteful number, since it uses less digits than its factorization.

822081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320.

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 822081 is about 906.6868257563. The cubic root of 822081 is about 93.6781280257.

The spelling of 822081 in words is "eight hundred twenty-two thousand, eighty-one".