222923 has 4 divisors (see below), whose sum is σ = 230640. Its totient is φ = 215208.

The previous prime is 222919. The next prime is 222931. The reversal of 222923 is 329222.

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

It is a cyclic number.

It is not a de Polignac number, because 222923 - 2² = 222919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222895 and 222904.

It is not an unprimeable number, because it can be changed into a prime (222913) 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, 3815 + ... + 3872.

It is an arithmetic number, because the mean of its divisors is an integer number (57660).

2²²²⁹²³ is an apocalyptic number.

222923 is a deficient number, since it is larger than the sum of its proper divisors (7717).

222923 is an equidigital number, since it uses as much as digits as its factorization.

222923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7716.

The product of its digits is 432, while the sum is 20.

The square root of 222923 is about 472.1472228024. The cubic root of 222923 is about 60.6342895036.

The spelling of 222923 in words is "two hundred twenty-two thousand, nine hundred twenty-three".