823222 has 4 divisors (see below), whose sum is σ = 1234836. Its totient is φ = 411610.

The previous prime is 823219. The next prime is 823231. The reversal of 823222 is 222328.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×823222² = 1355388922568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 823222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205804 + ... + 205807.

It is an arithmetic number, because the mean of its divisors is an integer number (308709).

2⁸²³²²² is an apocalyptic number.

823222 is a deficient number, since it is larger than the sum of its proper divisors (411614).

823222 is a wasteful number, since it uses less digits than its factorization.

823222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411613.

The product of its digits is 384, while the sum is 19.

The square root of 823222 is about 907.3158215307. The cubic root of 823222 is about 93.7214478978.

The spelling of 823222 in words is "eight hundred twenty-three thousand, two hundred twenty-two".