678963626 has 16 divisors (see below), whose sum is σ = 1114833888. Its totient is φ = 307563600.

The previous prime is 678963619. The next prime is 678963641. The reversal of 678963626 is 626369876.

It is a Curzon number.

It is a nialpdrome in base 13.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 46220 + ... + 59111.

It is an arithmetic number, because the mean of its divisors is an integer number (69677118).

Almost surely, 2^678963626 is an apocalyptic number.

678963626 is a deficient number, since it is larger than the sum of its proper divisors (435870262).

678963626 is a wasteful number, since it uses less digits than its factorization.

678963626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105637.

The product of its digits is 3919104, while the sum is 53.

The square root of 678963626 is about 26056.9304792410. The cubic root of 678963626 is about 878.9189661109.

The spelling of 678963626 in words is "six hundred seventy-eight million, nine hundred sixty-three thousand, six hundred twenty-six".