194889 has 8 divisors (see below), whose sum is σ = 262080. Its totient is φ = 128816.

The previous prime is 194869. The next prime is 194891. The reversal of 194889 is 988491.

194889 is nontrivially palindromic in base 12.

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

It is a cyclic number.

It is not a de Polignac number, because 194889 - 2⁹ = 194377 is a prime.

194889 is an undulating number in base 12.

It is not an unprimeable number, because it can be changed into a prime (194809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307 + ... + 695.

It is an arithmetic number, because the mean of its divisors is an integer number (32760).

2¹⁹⁴⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

194889 is a deficient number, since it is larger than the sum of its proper divisors (67191).

194889 is a wasteful number, since it uses less digits than its factorization.

194889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559.

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

The square root of 194889 is about 441.4623426749. The cubic root of 194889 is about 57.9778948660.

The spelling of 194889 in words is "one hundred ninety-four thousand, eight hundred eighty-nine".