189396 has 18 divisors (see below), whose sum is σ = 478842. Its totient is φ = 63120.

The previous prime is 189391. The next prime is 189401. The reversal of 189396 is 693981.

It is an interprime number because it is at equal distance from previous prime (189391) and next prime (189401).

It can be written as a sum of positive squares in only one way, i.e., 176400 + 12996 = 420^2 + 114^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 5261 = 189396 / (1 + 8 + 9 + 3 + 9 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 189396.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189391) by changing a digit.

189396 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2595 + ... + 2666.

2¹⁸⁹³⁹⁶ is an apocalyptic number.

It is an amenable number.

189396 is an abundant number, since it is smaller than the sum of its proper divisors (289446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189396 is a wasteful number, since it uses less digits than its factorization.

189396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5271 (or 5266 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 189396 is about 435.1965073389. The cubic root of 189396 is about 57.4279879859.

It can be divided in two parts, 189 and 396, that added together give a palindrome (585).

The spelling of 189396 in words is "one hundred eighty-nine thousand, three hundred ninety-six".