680306803 has 8 divisors (see below), whose sum is σ = 742343616. Its totient is φ = 618301800.

The previous prime is 680306789. The next prime is 680306843. The reversal of 680306803 is 308603086.

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 680306803 - 2⁵ = 680306771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680306843) 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, 70288 + ... + 79378.

It is an arithmetic number, because the mean of its divisors is an integer number (92792952).

Almost surely, 2^680306803 is an apocalyptic number.

680306803 is a deficient number, since it is larger than the sum of its proper divisors (62036813).

680306803 is a wasteful number, since it uses less digits than its factorization.

680306803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15905.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 680306803 is about 26082.6916364090. The cubic root of 680306803 is about 879.4981655796.

Adding to 680306803 its reverse (308603086), we get a palindrome (988909889).

The spelling of 680306803 in words is "six hundred eighty million, three hundred six thousand, eight hundred three".