222723 has 16 divisors (see below), whose sum is σ = 337440. Its totient is φ = 145152.

The previous prime is 222713. The next prime is 222731. The reversal of 222723 is 327222.

It is not a de Polignac number, because 222723 - 2⁴ = 222707 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 222696 and 222705.

It is not an unprimeable number, because it can be changed into a prime (222713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1915 + ... + 2027.

It is an arithmetic number, because the mean of its divisors is an integer number (21090).

2²²²⁷²³ is an apocalyptic number.

222723 is a deficient number, since it is larger than the sum of its proper divisors (114717).

222723 is a wasteful number, since it uses less digits than its factorization.

222723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 189 counting only the distinct ones).

The product of its digits is 336, while the sum is 18.

The square root of 222723 is about 471.9353769321. The cubic root of 222723 is about 60.6161509740.

Adding to 222723 its reverse (327222), we get a palindrome (549945).

The spelling of 222723 in words is "two hundred twenty-two thousand, seven hundred twenty-three", and thus it is an iban number.