682505449 has 2 divisors, whose sum is σ = 682505450. Its totient is φ = 682505448.

The previous prime is 682505437. The next prime is 682505491. The reversal of 682505449 is 944505286.

682505449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 627151849 + 55353600 = 25043^2 + 7440^2 .

It is a cyclic number.

It is not a de Polignac number, because 682505449 - 2¹⁷ = 682374377 is a prime.

It is not a weakly prime, because it can be changed into another prime (682502449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341252724 + 341252725.

It is an arithmetic number, because the mean of its divisors is an integer number (341252725).

Almost surely, 2^682505449 is an apocalyptic number.

It is an amenable number.

682505449 is a deficient number, since it is larger than the sum of its proper divisors (1).

682505449 is an equidigital number, since it uses as much as digits as its factorization.

682505449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 43.

The square root of 682505449 is about 26124.8052432932. The cubic root of 682505449 is about 880.4446139088. Note that the first 3 decimals are identical.

The spelling of 682505449 in words is "six hundred eighty-two million, five hundred five thousand, four hundred forty-nine".