189685927 has 2 divisors, whose sum is σ = 189685928. Its totient is φ = 189685926.

The previous prime is 189685921. The next prime is 189685957. The reversal of 189685927 is 729586981.

189685927 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 189685927 - 2³ = 189685919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189685921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94842963 + 94842964.

It is an arithmetic number, because the mean of its divisors is an integer number (94842964).

Almost surely, 2^189685927 is an apocalyptic number.

189685927 is a deficient number, since it is larger than the sum of its proper divisors (1).

189685927 is an equidigital number, since it uses as much as digits as its factorization.

189685927 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 55.

The square root of 189685927 is about 13772.6514150326. The cubic root of 189685927 is about 574.5727659388.

The spelling of 189685927 in words is "one hundred eighty-nine million, six hundred eighty-five thousand, nine hundred twenty-seven".