680173471 has 2 divisors, whose sum is σ = 680173472. Its totient is φ = 680173470.

The previous prime is 680173421. The next prime is 680173513. The reversal of 680173471 is 174371086.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 680173471 - 2⁹ = 680172959 is a prime.

It is a super-3 number, since 3×680173471³ (a number of 27 digits) contains 333 as substring.

It is equal to p_35278552 and since 680173471 and 35278552 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 680173471.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (680173421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340086735 + 340086736.

It is an arithmetic number, because the mean of its divisors is an integer number (340086736).

Almost surely, 2^680173471 is an apocalyptic number.

680173471 is a deficient number, since it is larger than the sum of its proper divisors (1).

680173471 is an equidigital number, since it uses as much as digits as its factorization.

680173471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 680173471 is about 26080.1355632980. The cubic root of 680173471 is about 879.4407047837.

The spelling of 680173471 in words is "six hundred eighty million, one hundred seventy-three thousand, four hundred seventy-one".