164843 has 4 divisors (see below), whose sum is σ = 188400. Its totient is φ = 141288.

The previous prime is 164839. The next prime is 164881. The reversal of 164843 is 348461.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 164843 - 2² = 164839 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164893) 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, 11768 + ... + 11781.

It is an arithmetic number, because the mean of its divisors is an integer number (47100).

2¹⁶⁴⁸⁴³ is an apocalyptic number.

164843 is a deficient number, since it is larger than the sum of its proper divisors (23557).

164843 is an equidigital number, since it uses as much as digits as its factorization.

164843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23556.

The product of its digits is 2304, while the sum is 26.

The square root of 164843 is about 406.0086205981. The cubic root of 164843 is about 54.8306637487.

The spelling of 164843 in words is "one hundred sixty-four thousand, eight hundred forty-three".