4085447959 has 2 divisors, whose sum is σ = 4085447960. Its totient is φ = 4085447958.

The previous prime is 4085447957. The next prime is 4085447969. The reversal of 4085447959 is 9597445804.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4085447959 - 2¹ = 4085447957 is a prime.

Together with 4085447957, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4085447953) 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, 2042723979 + 2042723980.

It is an arithmetic number, because the mean of its divisors is an integer number (2042723980).

Almost surely, 2^4085447959 is an apocalyptic number.

4085447959 is a deficient number, since it is larger than the sum of its proper divisors (1).

4085447959 is an equidigital number, since it uses as much as digits as its factorization.

4085447959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7257600, while the sum is 55.

The square root of 4085447959 is about 63917.5090174828. The cubic root of 4085447959 is about 1598.6248547765.

The spelling of 4085447959 in words is "four billion, eighty-five million, four hundred forty-seven thousand, nine hundred fifty-nine".