189894 has 8 divisors (see below), whose sum is σ = 379800. Its totient is φ = 63296.

The previous prime is 189887. The next prime is 189901. The reversal of 189894 is 498981.

It is an interprime number because it is at equal distance from previous prime (189887) and next prime (189901).

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

189894 is an admirable number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15819 + ... + 15830.

It is an arithmetic number, because the mean of its divisors is an integer number (47475).

2¹⁸⁹⁸⁹⁴ is an apocalyptic number.

189894 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

189894 is a wasteful number, since it uses less digits than its factorization.

189894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31654.

The product of its digits is 20736, while the sum is 39.

The square root of 189894 is about 435.7682870517. The cubic root of 189894 is about 57.4782778693.

The spelling of 189894 in words is "one hundred eighty-nine thousand, eight hundred ninety-four".