678047200 has 72 divisors (see below), whose sum is σ = 1700094312. Its totient is φ = 263877120.

The previous prime is 678047197. The next prime is 678047207. The reversal of 678047200 is 2740876.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678047207) 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 11 ways as a sum of consecutive naturals, for example, 18147 + ... + 41053.

It is an arithmetic number, because the mean of its divisors is an integer number (23612421).

Almost surely, 2^678047200 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 678047200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (850047156).

678047200 is an abundant number, since it is smaller than the sum of its proper divisors (1022047112).

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

678047200 is a wasteful number, since it uses less digits than its factorization.

678047200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22964 (or 22951 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 678047200 is about 26039.3394693491. The cubic root of 678047200 is about 878.5233499967.

The spelling of 678047200 in words is "six hundred seventy-eight million, forty-seven thousand, two hundred".