678774316 has 24 divisors (see below), whose sum is σ = 1364045760. Its totient is φ = 292294800.

The previous prime is 678774301. The next prime is 678774359. The reversal of 678774316 is 613477876.

It is a super-2 number, since 2×678774316² = 921469144122535712, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 678774316.

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 7 ways as a sum of consecutive naturals, for example, 405130 + ... + 406801.

It is an arithmetic number, because the mean of its divisors is an integer number (56835240).

Almost surely, 2^678774316 is an apocalyptic number.

It is an amenable number.

678774316 is an abundant number, since it is smaller than the sum of its proper divisors (685271444).

678774316 is a wasteful number, since it uses less digits than its factorization.

678774316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811965 (or 811963 counting only the distinct ones).

The product of its digits is 1185408, while the sum is 49.

The square root of 678774316 is about 26053.2976031826. The cubic root of 678774316 is about 878.8372712013.

The spelling of 678774316 in words is "six hundred seventy-eight million, seven hundred seventy-four thousand, three hundred sixteen".