680111 has 4 divisors (see below), whose sum is σ = 688800. Its totient is φ = 671424.

The previous prime is 680107. The next prime is 680123. The reversal of 680111 is 111086.

It is a happy number.

680111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 680111 - 2² = 680107 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 680111.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 680111.

It is not an unprimeable number, because it can be changed into a prime (680161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4226 + ... + 4383.

It is an arithmetic number, because the mean of its divisors is an integer number (172200).

2⁶⁸⁰¹¹¹ is an apocalyptic number.

680111 is a deficient number, since it is larger than the sum of its proper divisors (8689).

680111 is an equidigital number, since it uses as much as digits as its factorization.

680111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8688.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 680111 is about 824.6884260131. The cubic root of 680111 is about 87.9413779681.

Adding to 680111 its reverse (111086), we get a palindrome (791197).

The spelling of 680111 in words is "six hundred eighty thousand, one hundred eleven".