822065 has 4 divisors (see below), whose sum is σ = 986484. Its totient is φ = 657648.

The previous prime is 822049. The next prime is 822067. The reversal of 822065 is 560228.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 564001 + 258064 = 751^2 + 508^2 .

It is a cyclic number.

It is not a de Polignac number, because 822065 - 2⁴ = 822049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 822065.

It is not an unprimeable number, because it can be changed into a prime (822067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82202 + ... + 82211.

It is an arithmetic number, because the mean of its divisors is an integer number (246621).

2⁸²²⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

822065 is a deficient number, since it is larger than the sum of its proper divisors (164419).

822065 is a wasteful number, since it uses less digits than its factorization.

822065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164418.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 822065 is about 906.6780023801. The cubic root of 822065 is about 93.6775202754.

The spelling of 822065 in words is "eight hundred twenty-two thousand, sixty-five".