678706130 has 32 divisors (see below), whose sum is σ = 1314759600. Its totient is φ = 251320320.

The previous prime is 678706123. The next prime is 678706139. The reversal of 678706130 is 31607876.

678706130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 238671601 + 440034529 = 15449^2 + 20977^2 .

It is not an unprimeable number, because it can be changed into a prime (678706139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22355 + ... + 43094.

Almost surely, 2^678706130 is an apocalyptic number.

678706130 is a deficient number, since it is larger than the sum of its proper divisors (636053470).

678706130 is a wasteful number, since it uses less digits than its factorization.

678706130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65534.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 678706130 is about 26051.9889835690. The cubic root of 678706130 is about 878.8078424681.

The spelling of 678706130 in words is "six hundred seventy-eight million, seven hundred six thousand, one hundred thirty".