678486 has 8 divisors (see below), whose sum is σ = 1356984. Its totient is φ = 226160.

The previous prime is 678481. The next prime is 678493. The reversal of 678486 is 684876.

678486 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

678486 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678481) by changing a digit.

678486 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, 56535 + ... + 56546.

It is an arithmetic number, because the mean of its divisors is an integer number (169623).

2⁶⁷⁸⁴⁸⁶ is an apocalyptic number.

678486 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.

678486 is a wasteful number, since it uses less digits than its factorization.

678486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113086.

The product of its digits is 64512, while the sum is 39.

The square root of 678486 is about 823.7026162396. The cubic root of 678486 is about 87.8712822017.

The spelling of 678486 in words is "six hundred seventy-eight thousand, four hundred eighty-six".