164873 has 4 divisors (see below), whose sum is σ = 167040. Its totient is φ = 162708.

The previous prime is 164839. The next prime is 164881. The reversal of 164873 is 378461.

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: 378461 = 19 ⋅19919.

It is a cyclic number.

It is not a de Polignac number, because 164873 - 2⁶ = 164809 is a prime.

It is a super-2 number, since 2×164873² = 54366212258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 965 + ... + 1122.

It is an arithmetic number, because the mean of its divisors is an integer number (41760).

2¹⁶⁴⁸⁷³ is an apocalyptic number.

It is an amenable number.

164873 is a deficient number, since it is larger than the sum of its proper divisors (2167).

164873 is an equidigital number, since it uses as much as digits as its factorization.

164873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2166.

The product of its digits is 4032, while the sum is 29.

The square root of 164873 is about 406.0455639457. The cubic root of 164873 is about 54.8339897824.

The spelling of 164873 in words is "one hundred sixty-four thousand, eight hundred seventy-three".