680082687 has 12 divisors (see below), whose sum is σ = 983717280. Its totient is φ = 452753568.

The previous prime is 680082679. The next prime is 680082707. The reversal of 680082687 is 786280086.

It is not a de Polignac number, because 680082687 - 2³ = 680082679 is a prime.

It is a super-2 number, since 2×680082687² = 925024922314279938, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680082647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46078 + ... + 59019.

It is an arithmetic number, because the mean of its divisors is an integer number (81976440).

Almost surely, 2^680082687 is an apocalyptic number.

680082687 is a deficient number, since it is larger than the sum of its proper divisors (303634593).

680082687 is a wasteful number, since it uses less digits than its factorization.

680082687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105822 (or 105819 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 680082687 is about 26078.3950234672. The cubic root of 680082687 is about 879.4015761885.

The spelling of 680082687 in words is "six hundred eighty million, eighty-two thousand, six hundred eighty-seven".