678647350 has 24 divisors (see below), whose sum is σ = 1303005888. Its totient is φ = 262701600.

The previous prime is 678647297. The next prime is 678647363. The reversal of 678647350 is 53746876.

678647350 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 678647350.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 217369 + ... + 220468.

It is an arithmetic number, because the mean of its divisors is an integer number (54291912).

Almost surely, 2^678647350 is an apocalyptic number.

678647350 is a deficient number, since it is larger than the sum of its proper divisors (624358538).

678647350 is a wasteful number, since it uses less digits than its factorization.

678647350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437880 (or 437875 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 46.

The square root of 678647350 is about 26050.8608303065. The cubic root of 678647350 is about 878.7824717349.

The spelling of 678647350 in words is "six hundred seventy-eight million, six hundred forty-seven thousand, three hundred fifty".