870822 has 24 divisors (see below), whose sum is σ = 1909440. Its totient is φ = 286800.

The previous prime is 870811. The next prime is 870823. The reversal of 870822 is 228078.

870822 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1579 + ... + 2057.

It is an arithmetic number, because the mean of its divisors is an integer number (79560).

2⁸⁷⁰⁸²² is an apocalyptic number.

870822 is an abundant number, since it is smaller than the sum of its proper divisors (1038618).

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

870822 is a wasteful number, since it uses less digits than its factorization.

870822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588 (or 585 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 870822 is about 933.1784395280. The cubic root of 870822 is about 95.4940833117.

The spelling of 870822 in words is "eight hundred seventy thousand, eight hundred twenty-two".