678634008 has 32 divisors (see below), whose sum is σ = 1827092400. Its totient is φ = 208810368.

The previous prime is 678634003. The next prime is 678634027. The reversal of 678634008 is 800436876.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678634003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1087243 + ... + 1087866.

Almost surely, 2^678634008 is an apocalyptic number.

It is an amenable number.

678634008 is an abundant number, since it is smaller than the sum of its proper divisors (1148458392).

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

678634008 is a wasteful number, since it uses less digits than its factorization.

678634008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2175131 (or 2175127 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 678634008 is about 26050.6047530571. The cubic root of 678634008 is about 878.7767128320.

The spelling of 678634008 in words is "six hundred seventy-eight million, six hundred thirty-four thousand, eight".