189680806 has 16 divisors (see below), whose sum is σ = 327242016. Its totient is φ = 80773056.

The previous prime is 189680779. The next prime is 189680809. The reversal of 189680806 is 608086981.

189680806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189680809) 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, 40951 + ... + 45346.

It is an arithmetic number, because the mean of its divisors is an integer number (20452626).

Almost surely, 2^189680806 is an apocalyptic number.

189680806 is a deficient number, since it is larger than the sum of its proper divisors (137561210).

189680806 is a wasteful number, since it uses less digits than its factorization.

189680806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86463.

The product of its (nonzero) digits is 165888, while the sum is 46.

The square root of 189680806 is about 13772.4655018628. The cubic root of 189680806 is about 574.5675952625.

The spelling of 189680806 in words is "one hundred eighty-nine million, six hundred eighty thousand, eight hundred six".