822712 has 16 divisors (see below), whose sum is σ = 1683000. Its totient is φ = 373920.

The previous prime is 822697. The next prime is 822713. The reversal of 822712 is 217228.

822712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (822713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4587 + ... + 4762.

2⁸²²⁷¹² is an apocalyptic number.

It is an amenable number.

822712 is an abundant number, since it is smaller than the sum of its proper divisors (860288).

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

822712 is a wasteful number, since it uses less digits than its factorization.

822712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9366 (or 9362 counting only the distinct ones).

The product of its digits is 448, while the sum is 22.

The square root of 822712 is about 907.0347292138. The cubic root of 822712 is about 93.7020898905.

The spelling of 822712 in words is "eight hundred twenty-two thousand, seven hundred twelve".