678865060 has 48 divisors (see below), whose sum is σ = 1552420800. Its totient is φ = 248379264.

The previous prime is 678865021. The next prime is 678865067. The reversal of 678865060 is 60568876.

It is a happy number.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 678865060.

It is not an unprimeable number, because it can be changed into a prime (678865067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19782 + ... + 41821.

It is an arithmetic number, because the mean of its divisors is an integer number (32342100).

Almost surely, 2^678865060 is an apocalyptic number.

It is an amenable number.

678865060 is an abundant number, since it is smaller than the sum of its proper divisors (873555740).

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

678865060 is a wasteful number, since it uses less digits than its factorization.

678865060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61660 (or 61658 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 678865060 is about 26055.0390519761. The cubic root of 678865060 is about 878.8764327969.

The spelling of 678865060 in words is "six hundred seventy-eight million, eight hundred sixty-five thousand, sixty".