678368284 has 24 divisors (see below), whose sum is σ = 1299868416. Its totient is φ = 307206000.

The previous prime is 678368237. The next prime is 678368287. The reversal of 678368284 is 482863876.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678368287) 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 7 ways as a sum of consecutive naturals, for example, 16522 + ... + 40369.

It is an arithmetic number, because the mean of its divisors is an integer number (54161184).

Almost surely, 2^678368284 is an apocalyptic number.

It is an amenable number.

678368284 is a deficient number, since it is larger than the sum of its proper divisors (621500132).

678368284 is a wasteful number, since it uses less digits than its factorization.

678368284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57177 (or 57175 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 52.

The square root of 678368284 is about 26045.5041033957. The cubic root of 678368284 is about 878.6620007561.

The spelling of 678368284 in words is "six hundred seventy-eight million, three hundred sixty-eight thousand, two hundred eighty-four".