8916978 has 32 divisors (see below), whose sum is σ = 21087360. Its totient is φ = 2459520.

The previous prime is 8916977. The next prime is 8917001. The reversal of 8916978 is 8796198.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8916977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2443 + ... + 4878.

It is an arithmetic number, because the mean of its divisors is an integer number (658980).

Almost surely, 2^8916978 is an apocalyptic number.

8916978 is an abundant number, since it is smaller than the sum of its proper divisors (12170382).

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

8916978 is a wasteful number, since it uses less digits than its factorization.

8916978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7362.

The product of its digits is 217728, while the sum is 48.

The square root of 8916978 is about 2986.1309415362. The cubic root of 8916978 is about 207.3668027931.

The spelling of 8916978 in words is "eight million, nine hundred sixteen thousand, nine hundred seventy-eight".