682344709 has 2 divisors, whose sum is σ = 682344710. Its totient is φ = 682344708.

The previous prime is 682344653. The next prime is 682344781. The reversal of 682344709 is 907443286.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 533748609 + 148596100 = 23103^2 + 12190^2 .

It is a cyclic number.

It is not a de Polignac number, because 682344709 - 2¹³ = 682336517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (682342709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341172354 + 341172355.

It is an arithmetic number, because the mean of its divisors is an integer number (341172355).

Almost surely, 2^682344709 is an apocalyptic number.

It is an amenable number.

682344709 is a deficient number, since it is larger than the sum of its proper divisors (1).

682344709 is an equidigital number, since it uses as much as digits as its factorization.

682344709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 682344709 is about 26121.7286755682. The cubic root of 682344709 is about 880.3754892939.

The spelling of 682344709 in words is "six hundred eighty-two million, three hundred forty-four thousand, seven hundred nine".