8946978 has 16 divisors (see below), whose sum is σ = 17975520. Its totient is φ = 2968736.

The previous prime is 8946919. The next prime is 8946991. The reversal of 8946978 is 8796498.

It is a happy number.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 8946978.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1923 + ... + 4646.

It is an arithmetic number, because the mean of its divisors is an integer number (1123470).

Almost surely, 2^8946978 is an apocalyptic number.

8946978 is an abundant number, since it is smaller than the sum of its proper divisors (9028542).

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

8946978 is a wasteful number, since it uses less digits than its factorization.

8946978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6801.

The product of its digits is 870912, while the sum is 51.

The square root of 8946978 is about 2991.1499460910. The cubic root of 8946978 is about 207.5990952623.

The spelling of 8946978 in words is "eight million, nine hundred forty-six thousand, nine hundred seventy-eight".