680204803 has 2 divisors, whose sum is σ = 680204804. Its totient is φ = 680204802.

The previous prime is 680204753. The next prime is 680204827. The reversal of 680204803 is 308402086.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 680204803 - 2¹³ = 680196611 is a prime.

It is not a weakly prime, because it can be changed into another prime (680204003) 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 as a sum of consecutive naturals, namely, 340102401 + 340102402.

It is an arithmetic number, because the mean of its divisors is an integer number (340102402).

Almost surely, 2^680204803 is an apocalyptic number.

680204803 is a deficient number, since it is larger than the sum of its proper divisors (1).

680204803 is an equidigital number, since it uses as much as digits as its factorization.

680204803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 680204803 is about 26080.7362434422. The cubic root of 680204803 is about 879.4542083061.

Adding to 680204803 its reverse (308402086), we get a palindrome (988606889).

The spelling of 680204803 in words is "six hundred eighty million, two hundred four thousand, eight hundred three".