170668 has 6 divisors (see below), whose sum is σ = 298676. Its totient is φ = 85332.

The previous prime is 170647. The next prime is 170669. The reversal of 170668 is 866071.

170668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (170669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21330 + ... + 21337.

2¹⁷⁰⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

170668 is a deficient number, since it is larger than the sum of its proper divisors (128008).

170668 is a wasteful number, since it uses less digits than its factorization.

170668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42671 (or 42669 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 170668 is about 413.1198373354. The cubic root of 170668 is about 55.4690463979.

It can be divided in two parts, 170 and 668, that added together give a palindrome (838).

The spelling of 170668 in words is "one hundred seventy thousand, six hundred sixty-eight".