678007328 has 48 divisors (see below), whose sum is σ = 1420675200. Its totient is φ = 317408256.

The previous prime is 678007321. The next prime is 678007333. The reversal of 678007328 is 823700876.

It is not an unprimeable number, because it can be changed into a prime (678007321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105125 + ... + 111387.

It is an arithmetic number, because the mean of its divisors is an integer number (29597400).

Almost surely, 2^678007328 is an apocalyptic number.

678007328 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 678007328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (710337600).

678007328 is an abundant number, since it is smaller than the sum of its proper divisors (742667872).

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

678007328 is a wasteful number, since it uses less digits than its factorization.

678007328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6489 (or 6481 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 678007328 is about 26038.5738472751. The cubic root of 678007328 is about 878.5061293816.

The spelling of 678007328 in words is "six hundred seventy-eight million, seven thousand, three hundred twenty-eight".