822668 has 24 divisors (see below), whose sum is σ = 1795584. Its totient is φ = 320400.

The previous prime is 822667. The next prime is 822671. The reversal of 822668 is 866228.

It is a happy number.

822668 is nontrivially palindromic in base 6 and base 16.

It is a nialpdrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (822667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1028 + ... + 1643.

It is an arithmetic number, because the mean of its divisors is an integer number (74816).

2⁸²²⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

822668 is an abundant number, since it is smaller than the sum of its proper divisors (972916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

822668 is a wasteful number, since it uses less digits than its factorization.

822668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2693 (or 2691 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 822668 is about 907.0104740299. The cubic root of 822668 is about 93.7004194131.

The spelling of 822668 in words is "eight hundred twenty-two thousand, six hundred sixty-eight".