224789 has 4 divisors (see below), whose sum is σ = 236640. Its totient is φ = 212940.

The previous prime is 224771. The next prime is 224797. The reversal of 224789 is 987422.

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, and also an emirpimes, since its reverse is a distinct semiprime: 987422 = 2 ⋅493711.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224789 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224729) 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, 5897 + ... + 5934.

It is an arithmetic number, because the mean of its divisors is an integer number (59160).

2²²⁴⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

224789 is a deficient number, since it is larger than the sum of its proper divisors (11851).

224789 is a wasteful number, since it uses less digits than its factorization.

224789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11850.

The product of its digits is 8064, while the sum is 32.

The square root of 224789 is about 474.1191833284. The cubic root of 224789 is about 60.8030014966.

The spelling of 224789 in words is "two hundred twenty-four thousand, seven hundred eighty-nine".