189536986 has 16 divisors (see below), whose sum is σ = 286640064. Its totient is φ = 93993984.

The previous prime is 189536983. The next prime is 189536987. The reversal of 189536986 is 689635981.

It is a happy number.

189536986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (189536983) 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, 144811 + ... + 146113.

It is an arithmetic number, because the mean of its divisors is an integer number (17915004).

Almost surely, 2^189536986 is an apocalyptic number.

189536986 is a deficient number, since it is larger than the sum of its proper divisors (97103078).

189536986 is a wasteful number, since it uses less digits than its factorization.

189536986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1845.

The product of its digits is 2799360, while the sum is 55.

The square root of 189536986 is about 13767.2432244077. The cubic root of 189536986 is about 574.4223421095.

The spelling of 189536986 in words is "one hundred eighty-nine million, five hundred thirty-six thousand, nine hundred eighty-six".