723173 has 8 divisors (see below), whose sum is σ = 816480. Its totient is φ = 634480.

The previous prime is 723169. The next prime is 723181. The reversal of 723173 is 371327.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 723173 - 2² = 723169 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 815 + ... + 1452.

It is an arithmetic number, because the mean of its divisors is an integer number (102060).

2⁷²³¹⁷³ is an apocalyptic number.

It is an amenable number.

723173 is a deficient number, since it is larger than the sum of its proper divisors (93307).

723173 is a wasteful number, since it uses less digits than its factorization.

723173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2307.

The product of its digits is 882, while the sum is 23.

The square root of 723173 is about 850.3957902059. The cubic root of 723173 is about 89.7595640059.

The spelling of 723173 in words is "seven hundred twenty-three thousand, one hundred seventy-three", and thus it is an iban number.