170087 has 4 divisors (see below), whose sum is σ = 172320. Its totient is φ = 167856.

The previous prime is 170081. The next prime is 170099. The reversal of 170087 is 780071.

170087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 170087 - 2⁸ = 169831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 170087.

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 3 ways as a sum of consecutive naturals, for example, 998 + ... + 1155.

It is an arithmetic number, because the mean of its divisors is an integer number (43080).

2¹⁷⁰⁰⁸⁷ is an apocalyptic number.

170087 is a deficient number, since it is larger than the sum of its proper divisors (2233).

170087 is an equidigital number, since it uses as much as digits as its factorization.

170087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2232.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 170087 is about 412.4160520639. The cubic root of 170087 is about 55.4060309612.

The spelling of 170087 in words is "one hundred seventy thousand, eighty-seven".