680031 has 12 divisors (see below), whose sum is σ = 1071720. Its totient is φ = 412080.

The previous prime is 680027. The next prime is 680039. The reversal of 680031 is 130086.

680031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 680031 - 2² = 680027 is a prime.

It is a super-2 number, since 2×680031² = 924884321922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 679986 and 680013.

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 680031.

It is not an unprimeable number, because it can be changed into a prime (680039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3336 + ... + 3533.

It is an arithmetic number, because the mean of its divisors is an integer number (89310).

2⁶⁸⁰⁰³¹ is an apocalyptic number.

680031 is a deficient number, since it is larger than the sum of its proper divisors (391689).

680031 is a wasteful number, since it uses less digits than its factorization.

680031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6886 (or 6883 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 680031 is about 824.6399214203. The cubic root of 680031 is about 87.9379297142.

Subtracting from 680031 its reverse (130086), we obtain a palindrome (549945).

The spelling of 680031 in words is "six hundred eighty thousand, thirty-one".