382009709 has 2 divisors, whose sum is σ = 382009710. Its totient is φ = 382009708.

The previous prime is 382009673. The next prime is 382009717. The reversal of 382009709 is 907900283.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210975625 + 171034084 = 14525^2 + 13078^2 .

It is a cyclic number.

It is not a de Polignac number, because 382009709 - 2²⁴ = 365232493 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (382009729) 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, 191004854 + 191004855.

It is an arithmetic number, because the mean of its divisors is an integer number (191004855).

Almost surely, 2^382009709 is an apocalyptic number.

It is an amenable number.

382009709 is a deficient number, since it is larger than the sum of its proper divisors (1).

382009709 is an equidigital number, since it uses as much as digits as its factorization.

382009709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 382009709 is about 19545.0686619413. The cubic root of 382009709 is about 725.5902978436.

The spelling of 382009709 in words is "three hundred eighty-two million, nine thousand, seven hundred nine".