680011 has 4 divisors (see below), whose sum is σ = 682000. Its totient is φ = 678024.

The previous prime is 680003. The next prime is 680027. The reversal of 680011 is 110086.

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 680011 - 2³ = 680003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680081) 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, 336 + ... + 1213.

It is an arithmetic number, because the mean of its divisors is an integer number (170500).

2⁶⁸⁰⁰¹¹ is an apocalyptic number.

680011 is a deficient number, since it is larger than the sum of its proper divisors (1989).

680011 is a wasteful number, since it uses less digits than its factorization.

680011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 680011 is about 824.6277948262. The cubic root of 680011 is about 87.9370676085.

Adding to 680011 its reverse (110086), we get a palindrome (790097).

The spelling of 680011 in words is "six hundred eighty thousand, eleven".