189616902 has 16 divisors (see below), whose sum is σ = 379410480. Its totient is φ = 63176192.

The previous prime is 189616879. The next prime is 189616909. The reversal of 189616902 is 209616981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189616909) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9598 + ... + 21710.

It is an arithmetic number, because the mean of its divisors is an integer number (23713155).

Almost surely, 2^189616902 is an apocalyptic number.

189616902 is an abundant number, since it is smaller than the sum of its proper divisors (189793578).

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

189616902 is a wasteful number, since it uses less digits than its factorization.

189616902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14727.

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 189616902 is about 13770.1453151374. The cubic root of 189616902 is about 574.5030635323.

The spelling of 189616902 in words is "one hundred eighty-nine million, six hundred sixteen thousand, nine hundred two".