9916291 has 16 divisors (see below), whose sum is σ = 12510720. Its totient is φ = 7634880.

The previous prime is 9916279. The next prime is 9916297. The reversal of 9916291 is 1926199.

9916291 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9916291 - 2⁷ = 9916163 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9916291.

It is not an unprimeable number, because it can be changed into a prime (9916297) 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 15 ways as a sum of consecutive naturals, for example, 6130 + ... + 7576.

It is an arithmetic number, because the mean of its divisors is an integer number (781920).

Almost surely, 2^9916291 is an apocalyptic number.

9916291 is a deficient number, since it is larger than the sum of its proper divisors (2594429).

9916291 is a wasteful number, since it uses less digits than its factorization.

9916291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554.

The product of its digits is 8748, while the sum is 37.

The square root of 9916291 is about 3149.0142902184. The cubic root of 9916291 is about 214.8406318529.

The spelling of 9916291 in words is "nine million, nine hundred sixteen thousand, two hundred ninety-one".