679752659 has 2 divisors, whose sum is σ = 679752660. Its totient is φ = 679752658.

The previous prime is 679752617. The next prime is 679752709. The reversal of 679752659 is 956257976.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 679752659 - 2²⁰ = 678704083 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (679742659) 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, 339876329 + 339876330.

It is an arithmetic number, because the mean of its divisors is an integer number (339876330).

Almost surely, 2^679752659 is an apocalyptic number.

679752659 is a deficient number, since it is larger than the sum of its proper divisors (1).

679752659 is an equidigital number, since it uses as much as digits as its factorization.

679752659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7144200, while the sum is 56.

The square root of 679752659 is about 26072.0666422898. The cubic root of 679752659 is about 879.2593022619.

The spelling of 679752659 in words is "six hundred seventy-nine million, seven hundred fifty-two thousand, six hundred fifty-nine".