680798159 has 2 divisors, whose sum is σ = 680798160. Its totient is φ = 680798158.

The previous prime is 680798143. The next prime is 680798207. The reversal of 680798159 is 951897086.

680798159 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 680798159 - 2⁴ = 680798143 is a prime.

It is a super-2 number, since 2×680798159² = 926972266595578562, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 680798159.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (680798119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340399079 + 340399080.

It is an arithmetic number, because the mean of its divisors is an integer number (340399080).

Almost surely, 2^680798159 is an apocalyptic number.

680798159 is a deficient number, since it is larger than the sum of its proper divisors (1).

680798159 is an equidigital number, since it uses as much as digits as its factorization.

680798159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 53.

The square root of 680798159 is about 26092.1091328394. The cubic root of 680798159 is about 879.7098557074.

The spelling of 680798159 in words is "six hundred eighty million, seven hundred ninety-eight thousand, one hundred fifty-nine".