678347256 has 32 divisors (see below), whose sum is σ = 1696741200. Its totient is φ = 225999360.

The previous prime is 678347227. The next prime is 678347261. The reversal of 678347256 is 652743876.

678347256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49296 + ... + 61536.

Almost surely, 2^678347256 is an apocalyptic number.

It is an amenable number.

678347256 is an abundant number, since it is smaller than the sum of its proper divisors (1018393944).

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

678347256 is a wasteful number, since it uses less digits than its factorization.

678347256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14559 (or 14555 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 48.

The square root of 678347256 is about 26045.1004221523. The cubic root of 678347256 is about 878.6529217666.

The spelling of 678347256 in words is "six hundred seventy-eight million, three hundred forty-seven thousand, two hundred fifty-six".