678649058 has 8 divisors (see below), whose sum is σ = 1018288128. Its totient is φ = 339219684.

The previous prime is 678649051. The next prime is 678649073. The reversal of 678649058 is 850946876.

678649058 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (678649051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44066 + ... + 57437.

It is an arithmetic number, because the mean of its divisors is an integer number (127286016).

Almost surely, 2^678649058 is an apocalyptic number.

678649058 is a deficient number, since it is larger than the sum of its proper divisors (339639070).

678649058 is a wasteful number, since it uses less digits than its factorization.

678649058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104848.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The square root of 678649058 is about 26050.8936123120. The cubic root of 678649058 is about 878.7832089658.

The spelling of 678649058 in words is "six hundred seventy-eight million, six hundred forty-nine thousand, fifty-eight".