678916 has 12 divisors (see below), whose sum is σ = 1357888. Its totient is φ = 290952.

The previous prime is 678907. The next prime is 678941. The reversal of 678916 is 619876.

678916 is an admirable number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 12096 + ... + 12151.

2⁶⁷⁸⁹¹⁶ is an apocalyptic number.

It is an amenable number.

678916 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.

678916 is a wasteful number, since it uses less digits than its factorization.

678916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24258 (or 24256 counting only the distinct ones).

The product of its digits is 18144, while the sum is 37.

The square root of 678916 is about 823.9635914287. The cubic root of 678916 is about 87.8898414998.

The spelling of 678916 in words is "six hundred seventy-eight thousand, nine hundred sixteen".