682712609 has 2 divisors, whose sum is σ = 682712610. Its totient is φ = 682712608.

The previous prime is 682712593. The next prime is 682712621. The reversal of 682712609 is 906217286.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 680949025 + 1763584 = 26095^2 + 1328^2 .

It is a cyclic number.

It is not a de Polignac number, because 682712609 - 2⁴ = 682712593 is a prime.

It is not a weakly prime, because it can be changed into another prime (682712209) 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 as a sum of consecutive naturals, namely, 341356304 + 341356305.

It is an arithmetic number, because the mean of its divisors is an integer number (341356305).

Almost surely, 2^682712609 is an apocalyptic number.

It is an amenable number.

682712609 is a deficient number, since it is larger than the sum of its proper divisors (1).

682712609 is an equidigital number, since it uses as much as digits as its factorization.

682712609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 682712609 is about 26128.7697567260. The cubic root of 682712609 is about 880.5336849708.

The spelling of 682712609 in words is "six hundred eighty-two million, seven hundred twelve thousand, six hundred nine".