189929706 has 8 divisors (see below), whose sum is σ = 379859424. Its totient is φ = 63309900.

The previous prime is 189929689. The next prime is 189929741. The reversal of 189929706 is 607929981.

It is a happy number.

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

189929706 is an admirable number.

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, 15827470 + ... + 15827481.

It is an arithmetic number, because the mean of its divisors is an integer number (47482428).

Almost surely, 2^189929706 is an apocalyptic number.

189929706 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

189929706 is a wasteful number, since it uses less digits than its factorization.

189929706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31654956.

The product of its (nonzero) digits is 489888, while the sum is 51.

The square root of 189929706 is about 13781.4986848311. The cubic root of 189929706 is about 574.8188021370.

The spelling of 189929706 in words is "one hundred eighty-nine million, nine hundred twenty-nine thousand, seven hundred six".