822881 has 2 divisors, whose sum is σ = 822882. Its totient is φ = 822880.

The previous prime is 822853. The next prime is 822883. The reversal of 822881 is 188228.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 707281 + 115600 = 841^2 + 340^2 .

It is a cyclic number.

It is not a de Polignac number, because 822881 - 2¹⁰ = 821857 is a prime.

It is a super-2 number, since 2×822881² = 1354266280322, which contains 22 as substring.

Together with 822883, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (822883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411440 + 411441.

It is an arithmetic number, because the mean of its divisors is an integer number (411441).

2⁸²²⁸⁸¹ is an apocalyptic number.

It is an amenable number.

822881 is a deficient number, since it is larger than the sum of its proper divisors (1).

822881 is an equidigital number, since it uses as much as digits as its factorization.

822881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2048, while the sum is 29.

The square root of 822881 is about 907.1278851408. The cubic root of 822881 is about 93.7085054888.

The spelling of 822881 in words is "eight hundred twenty-two thousand, eight hundred eighty-one".