679796899 has 2 divisors, whose sum is σ = 679796900. Its totient is φ = 679796898.

The previous prime is 679796891. The next prime is 679796911. The reversal of 679796899 is 998697976.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 679796899 - 2³ = 679796891 is a prime.

It is not a weakly prime, because it can be changed into another prime (679796891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339898449 + 339898450.

It is an arithmetic number, because the mean of its divisors is an integer number (339898450).

Almost surely, 2^679796899 is an apocalyptic number.

679796899 is a deficient number, since it is larger than the sum of its proper divisors (1).

679796899 is an equidigital number, since it uses as much as digits as its factorization.

679796899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92588832, while the sum is 70.

The square root of 679796899 is about 26072.9150460780. The cubic root of 679796899 is about 879.2783766449.

The spelling of 679796899 in words is "six hundred seventy-nine million, seven hundred ninety-six thousand, eight hundred ninety-nine".