822412 has 6 divisors (see below), whose sum is σ = 1439228. Its totient is φ = 411204.

The previous prime is 822407. The next prime is 822431. The reversal of 822412 is 214228.

822412 is nontrivially palindromic in base 16.

It is a super-2 number, since 2×822412² = 1352722995488, which contains 22 as substring.

822412 is an undulating number in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 822412.

It is an unprimeable number.

822412 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102798 + ... + 102805.

2⁸²²⁴¹² is an apocalyptic number.

It is an amenable number.

822412 is a deficient number, since it is larger than the sum of its proper divisors (616816).

822412 is a wasteful number, since it uses less digits than its factorization.

822412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205607 (or 205605 counting only the distinct ones).

The product of its digits is 256, while the sum is 19.

The square root of 822412 is about 906.8693400926. The cubic root of 822412 is about 93.6906990901.

The spelling of 822412 in words is "eight hundred twenty-two thousand, four hundred twelve".