189607689 has 8 divisors (see below), whose sum is σ = 280900320. Its totient is φ = 126405108.

The previous prime is 189607679. The next prime is 189607709. The reversal of 189607689 is 986706981.

189607689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 189607689 - 2⁴ = 189607673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189607679) 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, 3511227 + ... + 3511280.

It is an arithmetic number, because the mean of its divisors is an integer number (35112540).

Almost surely, 2^189607689 is an apocalyptic number.

It is an amenable number.

189607689 is a deficient number, since it is larger than the sum of its proper divisors (91292631).

189607689 is an equidigital number, since it uses as much as digits as its factorization.

189607689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7022516 (or 7022510 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 189607689 is about 13769.8107830137. The cubic root of 189607689 is about 574.4937588371.

The spelling of 189607689 in words is "one hundred eighty-nine million, six hundred seven thousand, six hundred eighty-nine".