678427168 has 24 divisors (see below), whose sum is σ = 1366717968. Its totient is φ = 331324224.

The previous prime is 678427163. The next prime is 678427171. The reversal of 678427168 is 861724876.

It is a happy number.

678427168 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (678427163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245146 + ... + 247897.

It is an arithmetic number, because the mean of its divisors is an integer number (56946582).

Almost surely, 2^678427168 is an apocalyptic number.

It is an amenable number.

678427168 is an abundant number, since it is smaller than the sum of its proper divisors (688290800).

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

678427168 is a wasteful number, since it uses less digits than its factorization.

678427168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493096 (or 493088 counting only the distinct ones).

The product of its digits is 903168, while the sum is 49.

The square root of 678427168 is about 26046.6344850923. The cubic root of 678427168 is about 878.6874233461.

The spelling of 678427168 in words is "six hundred seventy-eight million, four hundred twenty-seven thousand, one hundred sixty-eight".