680810 has 16 divisors (see below), whose sum is σ = 1319976. Its totient is φ = 251328.

The previous prime is 680809. The next prime is 680831. The reversal of 680810 is 18086.

Added to its reverse (18086) it gives a square (698896 = 836²).

680810 is nontrivially palindromic in base 16.

680810 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 546121 + 134689 = 739^2 + 367^2 .

It is a super-2 number, since 2×680810² = 927004512200, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 680810.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2489 + ... + 2748.

2⁶⁸⁰⁸¹⁰ is an apocalyptic number.

680810 is a deficient number, since it is larger than the sum of its proper divisors (639166).

680810 is a wasteful number, since it uses less digits than its factorization.

680810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5257.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 680810 is about 825.1121135943. The cubic root of 680810 is about 87.9714955890.

Adding to 680810 its reverse (18086), we get a palindrome (698896).

The spelling of 680810 in words is "six hundred eighty thousand, eight hundred ten".