223726 has 4 divisors (see below), whose sum is σ = 335592. Its totient is φ = 111862.

The previous prime is 223711. The next prime is 223747. The reversal of 223726 is 627322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 627322 = 2 ⋅313661.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 223697 and 223706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55930 + ... + 55933.

It is an arithmetic number, because the mean of its divisors is an integer number (83898).

2²²³⁷²⁶ is an apocalyptic number.

223726 is a deficient number, since it is larger than the sum of its proper divisors (111866).

223726 is a wasteful number, since it uses less digits than its factorization.

223726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111865.

The product of its digits is 1008, while the sum is 22.

The square root of 223726 is about 472.9968287420. The cubic root of 223726 is about 60.7070066739.

It can be divided in two parts, 223 and 726, that added together give a palindrome (949).

The spelling of 223726 in words is "two hundred twenty-three thousand, seven hundred twenty-six".