189794239 has 8 divisors (see below), whose sum is σ = 201080880. Its totient is φ = 178521216.

The previous prime is 189794203. The next prime is 189794257. The reversal of 189794239 is 932497981.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-189794239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189794279) 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, 45412 + ... + 49414.

It is an arithmetic number, because the mean of its divisors is an integer number (25135110).

Almost surely, 2^189794239 is an apocalyptic number.

189794239 is a deficient number, since it is larger than the sum of its proper divisors (11286641).

189794239 is a wasteful number, since it uses less digits than its factorization.

189794239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6809.

The product of its digits is 979776, while the sum is 52.

The square root of 189794239 is about 13776.5829943422. The cubic root of 189794239 is about 574.6821068284.

It can be divided in two parts, 1897942 and 39, that added together give a palindrome (1897981).

The spelling of 189794239 in words is "one hundred eighty-nine million, seven hundred ninety-four thousand, two hundred thirty-nine".