1322823 has 4 divisors (see below), whose sum is σ = 1763768. Its totient is φ = 881880.

The previous prime is 1322813. The next prime is 1322831. The reversal of 1322823 is 3282231.

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

It is not a de Polignac number, because 1322823 - 2¹² = 1318727 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1322823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220468 + ... + 220473.

It is an arithmetic number, because the mean of its divisors is an integer number (440942).

2^1322823 is an apocalyptic number.

1322823 is a deficient number, since it is larger than the sum of its proper divisors (440945).

1322823 is an equidigital number, since it uses as much as digits as its factorization.

1322823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440944.

The product of its digits is 576, while the sum is 21.

The square root of 1322823 is about 1150.1404262089. The cubic root of 1322823 is about 109.7742754126.

It can be divided in two parts, 1322 and 823, that added together give a triangular number (2145 = T₆₅).

The spelling of 1322823 in words is "one million, three hundred twenty-two thousand, eight hundred twenty-three".