678593912 has 16 divisors (see below), whose sum is σ = 1306752360. Its totient is φ = 330126624.

The previous prime is 678593899. The next prime is 678593917. The reversal of 678593912 is 219395876.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678593917) 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 3 ways as a sum of consecutive naturals, for example, 1145978 + ... + 1146569.

Almost surely, 2^678593912 is an apocalyptic number.

It is an amenable number.

678593912 is a deficient number, since it is larger than the sum of its proper divisors (628158448).

678593912 is a wasteful number, since it uses less digits than its factorization.

678593912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2292590 (or 2292586 counting only the distinct ones).

The product of its digits is 816480, while the sum is 50.

The square root of 678593912 is about 26049.8351626263. The cubic root of 678593912 is about 878.7594054545.

The spelling of 678593912 in words is "six hundred seventy-eight million, five hundred ninety-three thousand, nine hundred twelve".