191996 has 12 divisors (see below), whose sum is σ = 384048. Its totient is φ = 82272.

The previous prime is 191977. The next prime is 191999. The reversal of 191996 is 699191.

191996 is an admirable number.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191999) 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 3 ways as a sum of consecutive naturals, for example, 3401 + ... + 3456.

It is an arithmetic number, because the mean of its divisors is an integer number (32004).

2¹⁹¹⁹⁹⁶ is an apocalyptic number.

It is an amenable number.

191996 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

191996 is a wasteful number, since it uses less digits than its factorization.

191996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6868 (or 6866 counting only the distinct ones).

The product of its digits is 4374, while the sum is 35.

The square root of 191996 is about 438.1734816257. The cubic root of 191996 is about 57.6895821846.

The spelling of 191996 in words is "one hundred ninety-one thousand, nine hundred ninety-six".