190893 has 16 divisors (see below), whose sum is σ = 285120. Its totient is φ = 112896.

The previous prime is 190891. The next prime is 190901. The reversal of 190893 is 398091.

It is a happy number.

It is not a de Polignac number, because 190893 - 2¹ = 190891 is a prime.

It is an Ulam number.

190893 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 190893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190891) 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 15 ways as a sum of consecutive naturals, for example, 871 + ... + 1067.

It is an arithmetic number, because the mean of its divisors is an integer number (17820).

2¹⁹⁰⁸⁹³ is an apocalyptic number.

It is an amenable number.

190893 is a deficient number, since it is larger than the sum of its proper divisors (94227).

190893 is a wasteful number, since it uses less digits than its factorization.

190893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 190893 is about 436.9130348250. The cubic root of 190893 is about 57.5788961075.

The spelling of 190893 in words is "one hundred ninety thousand, eight hundred ninety-three".