724173 has 4 divisors (see below), whose sum is σ = 965568. Its totient is φ = 482780.

The previous prime is 724153. The next prime is 724187. The reversal of 724173 is 371427.

724173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 724173 - 2⁸ = 723917 is a prime.

It is a D-number.

724173 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724123) 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, 120693 + ... + 120698.

It is an arithmetic number, because the mean of its divisors is an integer number (241392).

2⁷²⁴¹⁷³ is an apocalyptic number.

It is an amenable number.

724173 is a deficient number, since it is larger than the sum of its proper divisors (241395).

724173 is a wasteful number, since it uses less digits than its factorization.

724173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241394.

The product of its digits is 1176, while the sum is 24.

The square root of 724173 is about 850.9835486071. The cubic root of 724173 is about 89.8009179755.

The spelling of 724173 in words is "seven hundred twenty-four thousand, one hundred seventy-three", and thus it is an iban number.