822797 has 4 divisors (see below), whose sum is σ = 826620. Its totient is φ = 818976.

The previous prime is 822793. The next prime is 822803. The reversal of 822797 is 797228.

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 546121 + 276676 = 739^2 + 526^2 .

It is a cyclic number.

It is not a de Polignac number, because 822797 - 2² = 822793 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (822791) 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, 1568 + ... + 2025.

It is an arithmetic number, because the mean of its divisors is an integer number (206655).

2⁸²²⁷⁹⁷ is an apocalyptic number.

It is an amenable number.

822797 is a deficient number, since it is larger than the sum of its proper divisors (3823).

822797 is a wasteful number, since it uses less digits than its factorization.

822797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3822.

The product of its digits is 14112, while the sum is 35.

The square root of 822797 is about 907.0815839824. The cubic root of 822797 is about 93.7053167805.

The spelling of 822797 in words is "eight hundred twenty-two thousand, seven hundred ninety-seven".