189916 has 12 divisors (see below), whose sum is σ = 337120. Its totient is φ = 93600.

The previous prime is 189913. The next prime is 189929. The reversal of 189916 is 619981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16 + ... + 616.

2¹⁸⁹⁹¹⁶ is an apocalyptic number.

It is an amenable number.

189916 is a deficient number, since it is larger than the sum of its proper divisors (147204).

189916 is a wasteful number, since it uses less digits than its factorization.

189916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684 (or 682 counting only the distinct ones).

The product of its digits is 3888, while the sum is 34.

The square root of 189916 is about 435.7935290938. The cubic root of 189916 is about 57.4804974818.

The spelling of 189916 in words is "one hundred eighty-nine thousand, nine hundred sixteen".