289173 has 8 divisors (see below), whose sum is σ = 395136. Its totient is φ = 188000.

The previous prime is 289171. The next prime is 289181. The reversal of 289173 is 371982.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 289173 - 2¹ = 289171 is a prime.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 289173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289171) 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, 1053 + ... + 1298.

It is an arithmetic number, because the mean of its divisors is an integer number (49392).

2²⁸⁹¹⁷³ is an apocalyptic number.

It is an amenable number.

289173 is a deficient number, since it is larger than the sum of its proper divisors (105963).

289173 is a wasteful number, since it uses less digits than its factorization.

289173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2395.

The product of its digits is 3024, while the sum is 30.

The square root of 289173 is about 537.7480822839. The cubic root of 289173 is about 66.1280800283.

It can be divided in two parts, 28917 and 3, that added together give a triangular number (28920 = T₂₄₀).

The spelling of 289173 in words is "two hundred eighty-nine thousand, one hundred seventy-three".