192889 has 2 divisors, whose sum is σ = 192890. Its totient is φ = 192888.

The previous prime is 192887. The next prime is 192917. The reversal of 192889 is 988291.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156025 + 36864 = 395^2 + 192^2 .

It is a cyclic number.

It is not a de Polignac number, because 192889 - 2¹ = 192887 is a prime.

Together with 192887, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (192883) 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 as a sum of consecutive naturals, namely, 96444 + 96445.

It is an arithmetic number, because the mean of its divisors is an integer number (96445).

2¹⁹²⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

192889 is a deficient number, since it is larger than the sum of its proper divisors (1).

192889 is an equidigital number, since it uses as much as digits as its factorization.

192889 is an odious number, because the sum of its binary digits is odd.

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

The square root of 192889 is about 439.1913022818. The cubic root of 192889 is about 57.7788846216.

It can be divided in two parts, 192 and 889, that added together give a triangular number (1081 = T₄₆).

The spelling of 192889 in words is "one hundred ninety-two thousand, eight hundred eighty-nine".