822823 has 2 divisors, whose sum is σ = 822824. Its totient is φ = 822822.

The previous prime is 822821. The next prime is 822839. The reversal of 822823 is 328228.

822823 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 822823 - 2¹ = 822821 is a prime.

Together with 822821, it forms a pair of twin primes.

It is equal to p₆₅₆₃₅ and since 822823 and 65635 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (822821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411411 + 411412.

It is an arithmetic number, because the mean of its divisors is an integer number (411412).

2⁸²²⁸²³ is an apocalyptic number.

822823 is a deficient number, since it is larger than the sum of its proper divisors (1).

822823 is an equidigital number, since it uses as much as digits as its factorization.

822823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1536, while the sum is 25.

The square root of 822823 is about 907.0959155459. The cubic root of 822823 is about 93.7063037848.

The spelling of 822823 in words is "eight hundred twenty-two thousand, eight hundred twenty-three".