170879 has 4 divisors (see below), whose sum is σ = 172584. Its totient is φ = 169176.

The previous prime is 170873. The next prime is 170881. The reversal of 170879 is 978071.

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

It is a cyclic number.

It is not a de Polignac number, because 170879 - 2¹² = 166783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 692 + ... + 905.

It is an arithmetic number, because the mean of its divisors is an integer number (43146).

2¹⁷⁰⁸⁷⁹ is an apocalyptic number.

170879 is a deficient number, since it is larger than the sum of its proper divisors (1705).

170879 is a wasteful number, since it uses less digits than its factorization.

170879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1704.

The product of its (nonzero) digits is 3528, while the sum is 32.

The square root of 170879 is about 413.3751322951. The cubic root of 170879 is about 55.4918961195.

The spelling of 170879 in words is "one hundred seventy thousand, eight hundred seventy-nine".