9916278 has 16 divisors (see below), whose sum is σ = 19880640. Its totient is φ = 3297416.

The previous prime is 9916237. The next prime is 9916279. The reversal of 9916278 is 8726199.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9916279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1033 + ... + 4571.

It is an arithmetic number, because the mean of its divisors is an integer number (1242540).

Almost surely, 2^9916278 is an apocalyptic number.

9916278 is an abundant number, since it is smaller than the sum of its proper divisors (9964362).

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

9916278 is a wasteful number, since it uses less digits than its factorization.

9916278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4011.

The product of its digits is 54432, while the sum is 42.

The square root of 9916278 is about 3149.0122260798. The cubic root of 9916278 is about 214.8405379694.

The spelling of 9916278 in words is "nine million, nine hundred sixteen thousand, two hundred seventy-eight".