679986227 has 2 divisors, whose sum is σ = 679986228. Its totient is φ = 679986226.

The previous prime is 679986217. The next prime is 679986233. The reversal of 679986227 is 722689976.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 679986227 - 2¹² = 679982131 is a prime.

It is not a weakly prime, because it can be changed into another prime (679986217) by changing a digit.

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 as a sum of consecutive naturals, namely, 339993113 + 339993114.

It is an arithmetic number, because the mean of its divisors is an integer number (339993114).

Almost surely, 2^679986227 is an apocalyptic number.

679986227 is a deficient number, since it is larger than the sum of its proper divisors (1).

679986227 is an equidigital number, since it uses as much as digits as its factorization.

679986227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4572288, while the sum is 56.

The square root of 679986227 is about 26076.5455342536. The cubic root of 679986227 is about 879.3599973783.

The spelling of 679986227 in words is "six hundred seventy-nine million, nine hundred eighty-six thousand, two hundred twenty-seven".