680344411 has 16 divisors (see below), whose sum is σ = 714489984. Its totient is φ = 647256064.

The previous prime is 680344397. The next prime is 680344421. The reversal of 680344411 is 114443086.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-680344411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680344421) 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, 280275 + ... + 282691.

It is an arithmetic number, because the mean of its divisors is an integer number (44655624).

Almost surely, 2^680344411 is an apocalyptic number.

680344411 is a deficient number, since it is larger than the sum of its proper divisors (34145573).

680344411 is a wasteful number, since it uses less digits than its factorization.

680344411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2630.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 680344411 is about 26083.4125643099. The cubic root of 680344411 is about 879.5143717763.

Adding to 680344411 its reverse (114443086), we get a palindrome (794787497).

The spelling of 680344411 in words is "six hundred eighty million, three hundred forty-four thousand, four hundred eleven".