189690 has 16 divisors (see below), whose sum is σ = 455328. Its totient is φ = 50576.

The previous prime is 189671. The next prime is 189691. The reversal of 189690 is 96981.

It is a happy number.

189690 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×189690² = 71964592200, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (189691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3132 + ... + 3191.

It is an arithmetic number, because the mean of its divisors is an integer number (28458).

2¹⁸⁹⁶⁹⁰ is an apocalyptic number.

189690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189690 is an abundant number, since it is smaller than the sum of its proper divisors (265638).

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

189690 is a wasteful number, since it uses less digits than its factorization.

189690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6333.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 189690 is about 435.5341548030. The cubic root of 189690 is about 57.4576878383.

The spelling of 189690 in words is "one hundred eighty-nine thousand, six hundred ninety".