170804 has 6 divisors (see below), whose sum is σ = 298914. Its totient is φ = 85400.

The previous prime is 170801. The next prime is 170809. The reversal of 170804 is 408071.

It is a happy number.

170804 is nontrivially palindromic in base 14.

170804 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 168100 + 2704 = 410^2 + 52^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21347 + ... + 21354.

It is an arithmetic number, because the mean of its divisors is an integer number (49819).

2¹⁷⁰⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

170804 is a deficient number, since it is larger than the sum of its proper divisors (128110).

170804 is a wasteful number, since it uses less digits than its factorization.

170804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42705 (or 42703 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 170804 is about 413.2844057063. The cubic root of 170804 is about 55.4837763364.

Adding to 170804 its reverse (408071), we get a palindrome (578875).

The spelling of 170804 in words is "one hundred seventy thousand, eight hundred four".