680444727 has 8 divisors (see below), whose sum is σ = 908052480. Its totient is φ = 453233400.

The previous prime is 680444717. The next prime is 680444729. The reversal of 680444727 is 727444086.

680444727 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 680444727 - 2²² = 676250423 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680444729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95077 + ... + 101982.

It is an arithmetic number, because the mean of its divisors is an integer number (113506560).

Almost surely, 2^680444727 is an apocalyptic number.

680444727 is a deficient number, since it is larger than the sum of its proper divisors (227607753).

680444727 is a wasteful number, since it uses less digits than its factorization.

680444727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198213.

The product of its (nonzero) digits is 301056, while the sum is 42.

The square root of 680444727 is about 26085.3354780037. The cubic root of 680444727 is about 879.5575974456.

It can be divided in two parts, 68044 and 4727, that added together give a triangular number (72771 = T₃₈₁).

The spelling of 680444727 in words is "six hundred eighty million, four hundred forty-four thousand, seven hundred twenty-seven".