680331 has 4 divisors (see below), whose sum is σ = 907112. Its totient is φ = 453552.

The previous prime is 680327. The next prime is 680341. The reversal of 680331 is 133086.

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

It is not a de Polignac number, because 680331 - 2² = 680327 is a prime.

It is a super-2 number, since 2×680331² = 925700539122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 680298 and 680307.

It is not an unprimeable number, because it can be changed into a prime (680321) 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, 113386 + ... + 113391.

It is an arithmetic number, because the mean of its divisors is an integer number (226778).

2⁶⁸⁰³³¹ is an apocalyptic number.

680331 is a deficient number, since it is larger than the sum of its proper divisors (226781).

680331 is a wasteful number, since it uses less digits than its factorization.

680331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226780.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 680331 is about 824.8217989360. The cubic root of 680331 is about 87.9508592721.

The spelling of 680331 in words is "six hundred eighty thousand, three hundred thirty-one".