678585908 has 216 divisors, whose sum is σ = 1711729152. Its totient is φ = 232848000.

The previous prime is 678585857. The next prime is 678585937. The reversal of 678585908 is 809585876.

It is a congruent number.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 9557513 + ... + 9557583.

It is an arithmetic number, because the mean of its divisors is an integer number (7924672).

Almost surely, 2^678585908 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 678585908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (855864576).

678585908 is an abundant number, since it is smaller than the sum of its proper divisors (1033143244).

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

678585908 is a wasteful number, since it uses less digits than its factorization.

678585908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 56.

The square root of 678585908 is about 26049.6815335620. The cubic root of 678585908 is about 878.7559504584.

The spelling of 678585908 in words is "six hundred seventy-eight million, five hundred eighty-five thousand, nine hundred eight".