9916081 has 12 divisors (see below), whose sum is σ = 12143280. Its totient is φ = 8051400.

The previous prime is 9916069. The next prime is 9916091. The reversal of 9916081 is 1806199.

It is not a de Polignac number, because 9916081 - 2¹¹ = 9914033 is a prime.

It is a super-2 number, since 2×9916081² = 196657324797122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9916021) 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 11 ways as a sum of consecutive naturals, for example, 4395 + ... + 6256.

It is an arithmetic number, because the mean of its divisors is an integer number (1011940).

Almost surely, 2^9916081 is an apocalyptic number.

It is an amenable number.

9916081 is a deficient number, since it is larger than the sum of its proper divisors (2227199).

9916081 is a wasteful number, since it uses less digits than its factorization.

9916081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10684 (or 10677 counting only the distinct ones).

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

The square root of 9916081 is about 3148.9809462745. The cubic root of 9916081 is about 214.8391152627.

The spelling of 9916081 in words is "nine million, nine hundred sixteen thousand, eighty-one".