426223 has 4 divisors (see below), whose sum is σ = 487120. Its totient is φ = 365328.

The previous prime is 426211. The next prime is 426229. The reversal of 426223 is 322624.

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 426223 - 2¹³ = 418031 is a prime.

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 426223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426229) 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, 30438 + ... + 30451.

It is an arithmetic number, because the mean of its divisors is an integer number (121780).

2⁴²⁶²²³ is an apocalyptic number.

426223 is a deficient number, since it is larger than the sum of its proper divisors (60897).

426223 is an equidigital number, since it uses as much as digits as its factorization.

426223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60896.

The product of its digits is 576, while the sum is 19.

The square root of 426223 is about 652.8575648639. The cubic root of 426223 is about 75.2567791158.

Adding to 426223 its reverse (322624), we get a palindrome (748847).

The spelling of 426223 in words is "four hundred twenty-six thousand, two hundred twenty-three".