680745803 has 2 divisors, whose sum is σ = 680745804. Its totient is φ = 680745802.

The previous prime is 680745761. The next prime is 680745809. The reversal of 680745803 is 308547086.

It is a happy number.

680745803 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 680745803 - 2¹² = 680741707 is a prime.

It is a super-2 number, since 2×680745803² = 926829696604229618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (680745809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340372901 + 340372902.

It is an arithmetic number, because the mean of its divisors is an integer number (340372902).

Almost surely, 2^680745803 is an apocalyptic number.

680745803 is a deficient number, since it is larger than the sum of its proper divisors (1).

680745803 is an equidigital number, since it uses as much as digits as its factorization.

680745803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 680745803 is about 26091.1058217163. The cubic root of 680745803 is about 879.6873041041.

The spelling of 680745803 in words is "six hundred eighty million, seven hundred forty-five thousand, eight hundred three".