822878 has 16 divisors (see below), whose sum is σ = 1438560. Its totient is φ = 345696.

The previous prime is 822853. The next prime is 822881. The reversal of 822878 is 878228.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188 + ... + 1296.

It is an arithmetic number, because the mean of its divisors is an integer number (89910).

2⁸²²⁸⁷⁸ is an apocalyptic number.

822878 is a deficient number, since it is larger than the sum of its proper divisors (615682).

822878 is a wasteful number, since it uses less digits than its factorization.

822878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171.

The product of its digits is 14336, while the sum is 35.

The square root of 822878 is about 907.1262315687. The cubic root of 822878 is about 93.7083916101.

The spelling of 822878 in words is "eight hundred twenty-two thousand, eight hundred seventy-eight".