731223 has 12 divisors (see below), whose sum is σ = 1067040. Its totient is φ = 482496.

The previous prime is 731219. The next prime is 731233. The reversal of 731223 is 322137.

731223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 731223 - 2² = 731219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 731196 and 731205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (731233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 658 + ... + 1376.

It is an arithmetic number, because the mean of its divisors is an integer number (88920).

2⁷³¹²²³ is an apocalyptic number.

731223 is a deficient number, since it is larger than the sum of its proper divisors (335817).

731223 is a wasteful number, since it uses less digits than its factorization.

731223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838 (or 835 counting only the distinct ones).

The product of its digits is 252, while the sum is 18.

The square root of 731223 is about 855.1157816343. The cubic root of 731223 is about 90.0913886513.

It can be divided in two parts, 73 and 1223, that added together give a 4-th power (1296 = 6⁴).

The spelling of 731223 in words is "seven hundred thirty-one thousand, two hundred twenty-three".