872822 has 16 divisors (see below), whose sum is σ = 1397760. Its totient is φ = 407592.

The previous prime is 872791. The next prime is 872843. The reversal of 872822 is 228278.

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, 3803 + ... + 4025.

It is an arithmetic number, because the mean of its divisors is an integer number (87360).

2⁸⁷²⁸²² is an apocalyptic number.

872822 is a deficient number, since it is larger than the sum of its proper divisors (524938).

872822 is a wasteful number, since it uses less digits than its factorization.

872822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347.

The product of its digits is 3584, while the sum is 29.

The square root of 872822 is about 934.2494313619. The cubic root of 872822 is about 95.5671338854.

The spelling of 872822 in words is "eight hundred seventy-two thousand, eight hundred twenty-two".