224623 has 4 divisors (see below), whose sum is σ = 256720. Its totient is φ = 192528.

The previous prime is 224617. The next prime is 224629. The reversal of 224623 is 326422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 326422 = 2 ⋅163211.

It is an interprime number because it is at equal distance from previous prime (224617) and next prime (224629).

It is not a de Polignac number, because 224623 - 2⁵ = 224591 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 224623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224629) 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 3 ways as a sum of consecutive naturals, for example, 16038 + ... + 16051.

It is an arithmetic number, because the mean of its divisors is an integer number (64180).

2²²⁴⁶²³ is an apocalyptic number.

224623 is a deficient number, since it is larger than the sum of its proper divisors (32097).

224623 is an equidigital number, since it uses as much as digits as its factorization.

224623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32096.

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

The square root of 224623 is about 473.9440895296. The cubic root of 224623 is about 60.7880307406.

The spelling of 224623 in words is "two hundred twenty-four thousand, six hundred twenty-three".