170023 has 8 divisors (see below), whose sum is σ = 196992. Its totient is φ = 143736.

The previous prime is 170021. The next prime is 170029. The reversal of 170023 is 320071.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 170023 - 2¹ = 170021 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 169985 and 170012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 636 + ... + 862.

It is an arithmetic number, because the mean of its divisors is an integer number (24624).

2¹⁷⁰⁰²³ is an apocalyptic number.

170023 is a deficient number, since it is larger than the sum of its proper divisors (26969).

170023 is a wasteful number, since it uses less digits than its factorization.

170023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341.

The product of its (nonzero) digits is 42, while the sum is 13.

The square root of 170023 is about 412.3384532153. The cubic root of 170023 is about 55.3990807321.

Adding to 170023 its reverse (320071), we get a palindrome (490094).

The spelling of 170023 in words is "one hundred seventy thousand, twenty-three", and thus it is an iban number.