164804 has 6 divisors (see below), whose sum is σ = 288414. Its totient is φ = 82400.

The previous prime is 164789. The next prime is 164809. The reversal of 164804 is 408461.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 158404 + 6400 = 398^2 + 80^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 164804.

It is not an unprimeable number, because it can be changed into a prime (164809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20597 + ... + 20604.

It is an arithmetic number, because the mean of its divisors is an integer number (48069).

2¹⁶⁴⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

164804 is a deficient number, since it is larger than the sum of its proper divisors (123610).

164804 is a wasteful number, since it uses less digits than its factorization.

164804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41205 (or 41203 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 164804 is about 405.9605892202. The cubic root of 164804 is about 54.8263393015.

The spelling of 164804 in words is "one hundred sixty-four thousand, eight hundred four".