9996191 has 8 divisors (see below), whose sum is σ = 10462560. Its totient is φ = 9532512.

The previous prime is 9996157. The next prime is 9996209. The reversal of 9996191 is 1916999.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9996191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9996491) 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, 13745 + ... + 14453.

It is an arithmetic number, because the mean of its divisors is an integer number (1307820).

Almost surely, 2^9996191 is an apocalyptic number.

9996191 is a deficient number, since it is larger than the sum of its proper divisors (466369).

9996191 is a wasteful number, since it uses less digits than its factorization.

9996191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345.

The product of its digits is 39366, while the sum is 44.

The square root of 9996191 is about 3161.6753470273. The cubic root of 9996191 is about 215.4161113903.

The spelling of 9996191 in words is "nine million, nine hundred ninety-six thousand, one hundred ninety-one".