680240213 has 8 divisors (see below), whose sum is σ = 703423008. Its totient is φ = 657440784.

The previous prime is 680240201. The next prime is 680240237. The reversal of 680240213 is 312042086.

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 680240213 - 2¹⁴ = 680223829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680240243) 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, 92231 + ... + 99332.

It is an arithmetic number, because the mean of its divisors is an integer number (87927876).

Almost surely, 2^680240213 is an apocalyptic number.

It is an amenable number.

680240213 is a deficient number, since it is larger than the sum of its proper divisors (23182795).

680240213 is a wasteful number, since it uses less digits than its factorization.

680240213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191683.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 680240213 is about 26081.4150881427. The cubic root of 680240213 is about 879.4694688732.

Adding to 680240213 its reverse (312042086), we get a palindrome (992282299).

The spelling of 680240213 in words is "six hundred eighty million, two hundred forty thousand, two hundred thirteen".