2222823 has 16 divisors (see below), whose sum is σ = 3064320. Its totient is φ = 1432704.

The previous prime is 2222819. The next prime is 2222839. The reversal of 2222823 is 3282222.

It is not a de Polignac number, because 2222823 - 2² = 2222819 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2222823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19615 + ... + 19727.

It is an arithmetic number, because the mean of its divisors is an integer number (191520).

2^2222823 is an apocalyptic number.

2222823 is a deficient number, since it is larger than the sum of its proper divisors (841497).

2222823 is a wasteful number, since it uses less digits than its factorization.

2222823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278.

The product of its digits is 768, while the sum is 21.

The square root of 2222823 is about 1490.9134783749. The cubic root of 2222823 is about 130.5073468068.

The spelling of 2222823 in words is "two million, two hundred twenty-two thousand, eight hundred twenty-three".