680730243 has 8 divisors (see below), whose sum is σ = 913075968. Its totient is φ = 451102344.

The previous prime is 680730229. The next prime is 680730263. The reversal of 680730243 is 342037086.

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

It is not a de Polignac number, because 680730243 - 2¹³ = 680722051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (680730223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 678871 + ... + 679872.

It is an arithmetic number, because the mean of its divisors is an integer number (114134496).

Almost surely, 2^680730243 is an apocalyptic number.

680730243 is a deficient number, since it is larger than the sum of its proper divisors (232345725).

680730243 is a wasteful number, since it uses less digits than its factorization.

680730243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358913.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 680730243 is about 26090.8076341075. The cubic root of 680730243 is about 879.6806016323.

The spelling of 680730243 in words is "six hundred eighty million, seven hundred thirty thousand, two hundred forty-three".