189892 has 12 divisors (see below), whose sum is σ = 343980. Its totient is φ = 91616.

The previous prime is 189887. The next prime is 189901. The reversal of 189892 is 298981.

189892 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 42436 + 147456 = 206^2 + 384^2 .

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

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, 703 + ... + 934.

It is an arithmetic number, because the mean of its divisors is an integer number (28665).

2¹⁸⁹⁸⁹² is an apocalyptic number.

It is an amenable number.

189892 is a deficient number, since it is larger than the sum of its proper divisors (154088).

189892 is a wasteful number, since it uses less digits than its factorization.

189892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670 (or 1668 counting only the distinct ones).

The product of its digits is 10368, while the sum is 37.

The square root of 189892 is about 435.7659922481. The cubic root of 189892 is about 57.4780760778.

It can be divided in two parts, 189 and 892, that added together give a triangular number (1081 = T₄₆).

The spelling of 189892 in words is "one hundred eighty-nine thousand, eight hundred ninety-two".