678706627 has 2 divisors, whose sum is σ = 678706628. Its totient is φ = 678706626.

The previous prime is 678706621. The next prime is 678706729. The reversal of 678706627 is 726607876.

678706627 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 678706627 - 2¹⁹ = 678182339 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (678706621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339353313 + 339353314.

It is an arithmetic number, because the mean of its divisors is an integer number (339353314).

Almost surely, 2^678706627 is an apocalyptic number.

678706627 is a deficient number, since it is larger than the sum of its proper divisors (1).

678706627 is an equidigital number, since it uses as much as digits as its factorization.

678706627 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1185408, while the sum is 49.

The square root of 678706627 is about 26051.9985221864. The cubic root of 678706627 is about 878.8080569779.

The spelling of 678706627 in words is "six hundred seventy-eight million, seven hundred six thousand, six hundred twenty-seven".