679571273 has 2 divisors, whose sum is σ = 679571274. Its totient is φ = 679571272.

The previous prime is 679571257. The next prime is 679571323. The reversal of 679571273 is 372175976.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 366033424 + 313537849 = 19132^2 + 17707^2 .

It is a cyclic number.

It is not a de Polignac number, because 679571273 - 2⁴ = 679571257 is a prime.

It is not a weakly prime, because it can be changed into another prime (679571213) 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, 339785636 + 339785637.

It is an arithmetic number, because the mean of its divisors is an integer number (339785637).

Almost surely, 2^679571273 is an apocalyptic number.

It is an amenable number.

679571273 is a deficient number, since it is larger than the sum of its proper divisors (1).

679571273 is an equidigital number, since it uses as much as digits as its factorization.

679571273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 555660, while the sum is 47.

The square root of 679571273 is about 26068.5878597211. The cubic root of 679571273 is about 879.1810877753.

The spelling of 679571273 in words is "six hundred seventy-nine million, five hundred seventy-one thousand, two hundred seventy-three".