678369600 has 336 divisors, whose sum is σ = 2539837440. Its totient is φ = 176025600.

The previous prime is 678369589. The next prime is 678369619. The reversal of 678369600 is 6963876.

678369600 is a `hidden beast` number, since 6 + 7 + 8 + 36 + 9 + 600 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1771009 + ... + 1771391.

It is an arithmetic number, because the mean of its divisors is an integer number (7559040).

Almost surely, 2^678369600 is an apocalyptic number.

678369600 is a gapful number since it is divisible by the number (60) 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 678369600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1269918720).

678369600 is an abundant number, since it is smaller than the sum of its proper divisors (1861467840).

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

678369600 is a wasteful number, since it uses less digits than its factorization.

678369600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 678369600 is about 26045.5293668606. The cubic root of 678369600 is about 878.6625689423.

The spelling of 678369600 in words is "six hundred seventy-eight million, three hundred sixty-nine thousand, six hundred".