328173 has 4 divisors (see below), whose sum is σ = 437568. Its totient is φ = 218780.

The previous prime is 328171. The next prime is 328177. The reversal of 328173 is 371823.

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, and also an emirpimes, since its reverse is a distinct semiprime: 371823 = 3 ⋅123941.

It is a cyclic number.

It is not a de Polignac number, because 328173 - 2¹ = 328171 is a prime.

It is a D-number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328171) 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, 54693 + ... + 54698.

It is an arithmetic number, because the mean of its divisors is an integer number (109392).

2³²⁸¹⁷³ is an apocalyptic number.

It is an amenable number.

328173 is a deficient number, since it is larger than the sum of its proper divisors (109395).

328173 is a wasteful number, since it uses less digits than its factorization.

328173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109394.

The product of its digits is 1008, while the sum is 24.

The square root of 328173 is about 572.8638581723. The cubic root of 328173 is about 68.9764675055.

Adding to 328173 its reverse (371823), we get a palindrome (699996).

The spelling of 328173 in words is "three hundred twenty-eight thousand, one hundred seventy-three".