680106 has 16 divisors (see below), whose sum is σ = 1554624. Its totient is φ = 194304.

The previous prime is 680083. The next prime is 680107. The reversal of 680106 is 601086.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (680107) by changing a digit.

680106 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8055 + ... + 8138.

It is an arithmetic number, because the mean of its divisors is an integer number (97164).

2⁶⁸⁰¹⁰⁶ is an apocalyptic number.

680106 is an abundant number, since it is smaller than the sum of its proper divisors (874518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

680106 is a wasteful number, since it uses less digits than its factorization.

680106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16205.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 680106 is about 824.6853945596. The cubic root of 680106 is about 87.9411624601.

The spelling of 680106 in words is "six hundred eighty thousand, one hundred six".