679800427 has 2 divisors, whose sum is σ = 679800428. Its totient is φ = 679800426.

The previous prime is 679800421. The next prime is 679800481. The reversal of 679800427 is 724008976.

679800427 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 679800427 - 2⁷ = 679800299 is a prime.

It is not a weakly prime, because it can be changed into another prime (679800421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339900213 + 339900214.

It is an arithmetic number, because the mean of its divisors is an integer number (339900214).

Almost surely, 2^679800427 is an apocalyptic number.

679800427 is a deficient number, since it is larger than the sum of its proper divisors (1).

679800427 is an equidigital number, since it uses as much as digits as its factorization.

679800427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 679800427 is about 26072.9827024067. The cubic root of 679800427 is about 879.2798977310.

The spelling of 679800427 in words is "six hundred seventy-nine million, eight hundred thousand, four hundred twenty-seven".