823122 has 20 divisors (see below), whose sum is σ = 1844766. Its totient is φ = 274320.

The previous prime is 823117. The next prime is 823127. The reversal of 823122 is 221328.

It is a happy number.

823122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (823117) and next prime (823127).

It can be written as a sum of positive squares in only one way, i.e., 793881 + 29241 = 891^2 + 171^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 823095 and 823104.

It is not an unprimeable number, because it can be changed into a prime (823127) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2379 + ... + 2702.

2⁸²³¹²² is an apocalyptic number.

823122 is an abundant number, since it is smaller than the sum of its proper divisors (1021644).

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

823122 is a wasteful number, since it uses less digits than its factorization.

823122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5095 (or 5086 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 823122 is about 907.2607122542. The cubic root of 823122 is about 93.7176528403.

The spelling of 823122 in words is "eight hundred twenty-three thousand, one hundred twenty-two".