680498279 has 16 divisors (see below), whose sum is σ = 708323616. Its totient is φ = 653299200.

The previous prime is 680498257. The next prime is 680498303. The reversal of 680498279 is 972894086.

680498279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 680498279 - 2⁸ = 680498023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 680498279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680498209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 793619 + ... + 794475.

It is an arithmetic number, because the mean of its divisors is an integer number (44270226).

Almost surely, 2^680498279 is an apocalyptic number.

680498279 is a deficient number, since it is larger than the sum of its proper divisors (27825337).

680498279 is a wasteful number, since it uses less digits than its factorization.

680498279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The square root of 680498279 is about 26086.3619349268. The cubic root of 680498279 is about 879.5806709989.

The spelling of 680498279 in words is "six hundred eighty million, four hundred ninety-eight thousand, two hundred seventy-nine".