679903199 has 2 divisors, whose sum is σ = 679903200.
Its totient is φ = 679903198.
The previous prime is 679903193. The next prime is 679903243. The reversal of 679903199 is 991309976.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 679903199 - 24 = 679903183 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 679903199.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (679903193) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339951599 + 339951600.
It is an arithmetic number, because the mean of its divisors is an integer number (339951600).
Almost surely, 2679903199 is an apocalyptic number.
679903199 is a deficient number, since it is larger than the sum of its proper divisors (1).
679903199 is an equidigital number, since it uses as much as digits as its factorization.
679903199 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 826686, while the sum is 53.
The square root of 679903199 is about 26074.9534803037.
The cubic root of 679903199 is about 879.3242052447.
The spelling of 679903199 in words is "six hundred seventy-nine million, nine hundred three thousand, one hundred ninety-nine".