1685714039 has 2 divisors, whose sum is σ = 1685714040. Its totient is φ = 1685714038.

The previous prime is 1685714027. The next prime is 1685714071. The reversal of 1685714039 is 9304175861.

It is a weak prime.

It is an emirp because it is prime and its reverse (9304175861) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1685714039 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1685714089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 842857019 + 842857020.

It is an arithmetic number, because the mean of its divisors is an integer number (842857020).

Almost surely, 2^1685714039 is an apocalyptic number.

1685714039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1685714039 is an equidigital number, since it uses as much as digits as its factorization.

1685714039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 1685714039 is about 41057.4480332132. The cubic root of 1685714039 is about 1190.1306353303.

The spelling of 1685714039 in words is "one billion, six hundred eighty-five million, seven hundred fourteen thousand, thirty-nine".