822239 has 8 divisors (see below), whose sum is σ = 949968. Its totient is φ = 703360.

The previous prime is 822233. The next prime is 822253. The reversal of 822239 is 932228.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 822239 - 2⁴ = 822223 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (822233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2012 + ... + 2385.

It is an arithmetic number, because the mean of its divisors is an integer number (118746).

2⁸²²²³⁹ is an apocalyptic number.

822239 is a deficient number, since it is larger than the sum of its proper divisors (127729).

822239 is a wasteful number, since it uses less digits than its factorization.

822239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4425.

The product of its digits is 1728, while the sum is 26.

The square root of 822239 is about 906.7739519858. The cubic root of 822239 is about 93.6841291359.

The spelling of 822239 in words is "eight hundred twenty-two thousand, two hundred thirty-nine".