978366 has 8 divisors (see below), whose sum is σ = 1956744. Its totient is φ = 326120.

The previous prime is 978359. The next prime is 978389. The reversal of 978366 is 663879.

It is a sphenic number, since it is the product of 3 distinct primes.

978366 is an admirable number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 978366.

It is an unprimeable number.

978366 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81525 + ... + 81536.

It is an arithmetic number, because the mean of its divisors is an integer number (244593).

2⁹⁷⁸³⁶⁶ is an apocalyptic number.

978366 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

978366 is a wasteful number, since it uses less digits than its factorization.

978366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163066.

The product of its digits is 54432, while the sum is 39.

The square root of 978366 is about 989.1238547321. The cubic root of 978366 is about 99.2736029156.

The spelling of 978366 in words is "nine hundred seventy-eight thousand, three hundred sixty-six".