170085 has 32 divisors (see below), whose sum is σ = 311040. Its totient is φ = 78848.

The previous prime is 170081. The next prime is 170099. The reversal of 170085 is 580071.

170085 = 23² + 24² + ... + 80².

It is a happy number.

170085 is nontrivially palindromic in base 2.

It is a cyclic number.

It is not a de Polignac number, because 170085 - 2² = 170081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5851 + ... + 5879.

It is an arithmetic number, because the mean of its divisors is an integer number (9720).

2¹⁷⁰⁰⁸⁵ is an apocalyptic number.

170085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

170085 is a deficient number, since it is larger than the sum of its proper divisors (140955).

170085 is a wasteful number, since it uses less digits than its factorization.

170085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77.

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 170085 is about 412.4136273209. The cubic root of 170085 is about 55.4058137929.

The spelling of 170085 in words is "one hundred seventy thousand, eighty-five".