822441 has 4 divisors (see below), whose sum is σ = 1096592. Its totient is φ = 548292.

The previous prime is 822433. The next prime is 822517. The reversal of 822441 is 144228.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 822441 - 2³ = 822433 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (822431) 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, 137071 + ... + 137076.

It is an arithmetic number, because the mean of its divisors is an integer number (274148).

2⁸²²⁴⁴¹ is an apocalyptic number.

It is an amenable number.

822441 is a deficient number, since it is larger than the sum of its proper divisors (274151).

822441 is a wasteful number, since it uses less digits than its factorization.

822441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274150.

The product of its digits is 512, while the sum is 21.

The square root of 822441 is about 906.8853290246. The cubic root of 822441 is about 93.6918003218.

Adding to 822441 its reverse (144228), we get a palindrome (966669).

The spelling of 822441 in words is "eight hundred twenty-two thousand, four hundred forty-one".