679710089 has 2 divisors, whose sum is σ = 679710090. Its totient is φ = 679710088.

The previous prime is 679710043. The next prime is 679710169. The reversal of 679710089 is 980017976.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 395214400 + 284495689 = 19880^2 + 16867^2 .

It is a cyclic number.

It is not a de Polignac number, because 679710089 - 2²⁴ = 662932873 is a prime.

It is not a weakly prime, because it can be changed into another prime (679710989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339855044 + 339855045.

It is an arithmetic number, because the mean of its divisors is an integer number (339855045).

Almost surely, 2^679710089 is an apocalyptic number.

It is an amenable number.

679710089 is a deficient number, since it is larger than the sum of its proper divisors (1).

679710089 is an equidigital number, since it uses as much as digits as its factorization.

679710089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 47.

The square root of 679710089 is about 26071.2502385290. The cubic root of 679710089 is about 879.2409471297.

The spelling of 679710089 in words is "six hundred seventy-nine million, seven hundred ten thousand, eighty-nine".