189486 has 48 divisors (see below), whose sum is σ = 478800. Its totient is φ = 55440.

The previous prime is 189479. The next prime is 189491. The reversal of 189486 is 684981.

It is a happy number.

189486 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 189486.

It is a congruent number.

It is an unprimeable number.

189486 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 23 ways as a sum of consecutive naturals, for example, 6520 + ... + 6548.

It is an arithmetic number, because the mean of its divisors is an integer number (9975).

2¹⁸⁹⁴⁸⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239400).

189486 is an abundant number, since it is smaller than the sum of its proper divisors (289314).

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

189486 is a wasteful number, since it uses less digits than its factorization.

189486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62 (or 45 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 189486 is about 435.2998966230. The cubic root of 189486 is about 57.4370830397.

The spelling of 189486 in words is "one hundred eighty-nine thousand, four hundred eighty-six".