822023 has 4 divisors (see below), whose sum is σ = 834360. Its totient is φ = 809688.

The previous prime is 822013. The next prime is 822037. The reversal of 822023 is 320228.

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

It is a cyclic number.

It is not a de Polignac number, because 822023 - 2⁴ = 822007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 821992 and 822010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (822013) 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, 6068 + ... + 6201.

It is an arithmetic number, because the mean of its divisors is an integer number (208590).

2⁸²²⁰²³ is an apocalyptic number.

822023 is a deficient number, since it is larger than the sum of its proper divisors (12337).

822023 is a wasteful number, since it uses less digits than its factorization.

822023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12336.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 822023 is about 906.6548406091. The cubic root of 822023 is about 93.6759248935.

The spelling of 822023 in words is "eight hundred twenty-two thousand, twenty-three".