726223 has 4 divisors (see below), whose sum is σ = 768960. Its totient is φ = 683488.

The previous prime is 726221. The next prime is 726287. The reversal of 726223 is 322627.

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 726223 - 2¹ = 726221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 726194 and 726203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21343 + ... + 21376.

It is an arithmetic number, because the mean of its divisors is an integer number (192240).

2⁷²⁶²²³ is an apocalyptic number.

726223 is a deficient number, since it is larger than the sum of its proper divisors (42737).

726223 is a wasteful number, since it uses less digits than its factorization.

726223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42736.

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

The square root of 726223 is about 852.1871860102. The cubic root of 726223 is about 89.8855747469.

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

The spelling of 726223 in words is "seven hundred twenty-six thousand, two hundred twenty-three".