680543 has 8 divisors (see below), whose sum is σ = 727680. Its totient is φ = 635040.

The previous prime is 680539. The next prime is 680567. The reversal of 680543 is 345086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 680543 - 2² = 680539 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

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 680543.

It is not an unprimeable number, because it can be changed into a prime (680503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521 + ... + 1277.

It is an arithmetic number, because the mean of its divisors is an integer number (90960).

2⁶⁸⁰⁵⁴³ is an apocalyptic number.

680543 is a deficient number, since it is larger than the sum of its proper divisors (47137).

680543 is a wasteful number, since it uses less digits than its factorization.

680543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 680543 is about 824.9503015334. The cubic root of 680543 is about 87.9599938677.

The spelling of 680543 in words is "six hundred eighty thousand, five hundred forty-three".