222393 has 4 divisors (see below), whose sum is σ = 296528. Its totient is φ = 148260.

The previous prime is 222389. The next prime is 222403. The reversal of 222393 is 393222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 222393 - 2² = 222389 is a prime.

It is a D-number.

It is a Duffinian number.

222393 is a lucky number.

It is a nialpdrome in base 6.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (222323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37063 + ... + 37068.

It is an arithmetic number, because the mean of its divisors is an integer number (74132).

2²²²³⁹³ is an apocalyptic number.

It is an amenable number.

222393 is a deficient number, since it is larger than the sum of its proper divisors (74135).

222393 is an equidigital number, since it uses as much as digits as its factorization.

222393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74134.

The product of its digits is 648, while the sum is 21.

The square root of 222393 is about 471.5856231905. The cubic root of 222393 is about 60.5861986455.

It can be divided in two parts, 22 and 2393, that added together give a triangular number (2415 = T₆₉).

The spelling of 222393 in words is "two hundred twenty-two thousand, three hundred ninety-three".