189739712 has 28 divisors (see below), whose sum is σ = 382143000. Its totient is φ = 93451776.

The previous prime is 189739709. The next prime is 189739727. The reversal of 189739712 is 217937981.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17837 + ... + 26412.

Almost surely, 2^189739712 is an apocalyptic number.

It is an amenable number.

189739712 is an abundant number, since it is smaller than the sum of its proper divisors (192403288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189739712 is an equidigital number, since it uses as much as digits as its factorization.

189739712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44328 (or 44318 counting only the distinct ones).

The product of its digits is 190512, while the sum is 47.

The square root of 189739712 is about 13774.6038781520. The cubic root of 189739712 is about 574.6270670605.

The spelling of 189739712 in words is "one hundred eighty-nine million, seven hundred thirty-nine thousand, seven hundred twelve".