163389 has 8 divisors (see below), whose sum is σ = 220320. Its totient is φ = 107696.

The previous prime is 163367. The next prime is 163393. The reversal of 163389 is 983361.

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 163389 - 2¹¹ = 161341 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163309) 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, 67 + ... + 575.

It is an arithmetic number, because the mean of its divisors is an integer number (27540).

2¹⁶³³⁸⁹ is an apocalyptic number.

It is an amenable number.

163389 is a deficient number, since it is larger than the sum of its proper divisors (56931).

163389 is a wasteful number, since it uses less digits than its factorization.

163389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619.

The product of its digits is 3888, while the sum is 30.

The square root of 163389 is about 404.2140522050. The cubic root of 163389 is about 54.6689758758.

The spelling of 163389 in words is "one hundred sixty-three thousand, three hundred eighty-nine".