678328884 has 48 divisors (see below), whose sum is σ = 1765545600. Its totient is φ = 225220608.

The previous prime is 678328877. The next prime is 678328991. The reversal of 678328884 is 488823876.

678328884 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×678328884³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 678328884.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15537 + ... + 39975.

It is an arithmetic number, because the mean of its divisors is an integer number (36782200).

Almost surely, 2^678328884 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 678328884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (882772800).

678328884 is an abundant number, since it is smaller than the sum of its proper divisors (1087216716).

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

678328884 is a wasteful number, since it uses less digits than its factorization.

678328884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24709 (or 24701 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 54.

The square root of 678328884 is about 26044.7477238694. The cubic root of 678328884 is about 878.6449893706.

The spelling of 678328884 in words is "six hundred seventy-eight million, three hundred twenty-eight thousand, eight hundred eighty-four".