173389 has 4 divisors (see below), whose sum is σ = 177660. Its totient is φ = 169120.

The previous prime is 173359. The next prime is 173429. The reversal of 173389 is 983371.

173389 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.

It can be written as a sum of positive squares in 2 ways, for example, as 100489 + 72900 = 317^2 + 270^2 .

It is a cyclic number.

It is not a de Polignac number, because 173389 - 2⁵ = 173357 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 173389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173309) 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, 2074 + ... + 2155.

It is an arithmetic number, because the mean of its divisors is an integer number (44415).

2¹⁷³³⁸⁹ is an apocalyptic number.

It is an amenable number.

173389 is a deficient number, since it is larger than the sum of its proper divisors (4271).

173389 is an equidigital number, since it uses as much as digits as its factorization.

173389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4270.

The product of its digits is 4536, while the sum is 31.

The square root of 173389 is about 416.4000480307. The cubic root of 173389 is about 55.7622788615.

The spelling of 173389 in words is "one hundred seventy-three thousand, three hundred eighty-nine".