189682939 has 8 divisors (see below), whose sum is σ = 197660160. Its totient is φ = 181801536.

The previous prime is 189682921. The next prime is 189682951. The reversal of 189682939 is 939286981.

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 189682939 - 2¹¹ = 189680891 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 189682939.

It is not an unprimeable number, because it can be changed into a prime (189682439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19899 + ... + 27844.

It is an arithmetic number, because the mean of its divisors is an integer number (24707520).

Almost surely, 2^189682939 is an apocalyptic number.

189682939 is a deficient number, since it is larger than the sum of its proper divisors (7977221).

189682939 is a wasteful number, since it uses less digits than its factorization.

189682939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47909.

The product of its digits is 1679616, while the sum is 55.

The square root of 189682939 is about 13772.5429387604. The cubic root of 189682939 is about 574.5697489650.

The spelling of 189682939 in words is "one hundred eighty-nine million, six hundred eighty-two thousand, nine hundred thirty-nine".