191966088 has 32 divisors (see below), whose sum is σ = 483701760. Its totient is φ = 63483840.

The previous prime is 191966083. The next prime is 191966161. The reversal of 191966088 is 880669191.

It is not an unprimeable number, because it can be changed into a prime (191966081) 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, 28443 + ... + 34538.

It is an arithmetic number, because the mean of its divisors is an integer number (15115680).

Almost surely, 2^191966088 is an apocalyptic number.

It is an amenable number.

191966088 is an abundant number, since it is smaller than the sum of its proper divisors (291735672).

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

191966088 is a wasteful number, since it uses less digits than its factorization.

191966088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63117 (or 63113 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 48.

The square root of 191966088 is about 13855.1827126170. The cubic root of 191966088 is about 576.8658611457.

The spelling of 191966088 in words is "one hundred ninety-one million, nine hundred sixty-six thousand, eighty-eight".