678066 has 8 divisors (see below), whose sum is σ = 1356144. Its totient is φ = 226020.

The previous prime is 678061. The next prime is 678077. The reversal of 678066 is 660876.

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

678066 is an admirable number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 678066.

It is not an unprimeable number, because it can be changed into a prime (678061) by changing a digit.

678066 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, 56500 + ... + 56511.

It is an arithmetic number, because the mean of its divisors is an integer number (169518).

2⁶⁷⁸⁰⁶⁶ is an apocalyptic number.

678066 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.

678066 is a wasteful number, since it uses less digits than its factorization.

678066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113016.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 678066 is about 823.4476303931. The cubic root of 678066 is about 87.8531469435.

The spelling of 678066 in words is "six hundred seventy-eight thousand, sixty-six".