85009339 has 2 divisors, whose sum is σ = 85009340. Its totient is φ = 85009338.

The previous prime is 85009319. The next prime is 85009343. The reversal of 85009339 is 93390058.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85009339 - 2⁵ = 85009307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85009298 and 85009307.

It is not a weakly prime, because it can be changed into another prime (85009319) 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, 42504669 + 42504670.

It is an arithmetic number, because the mean of its divisors is an integer number (42504670).

Almost surely, 2^85009339 is an apocalyptic number.

85009339 is a deficient number, since it is larger than the sum of its proper divisors (1).

85009339 is an equidigital number, since it uses as much as digits as its factorization.

85009339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 85009339 is about 9220.0509217683. The cubic root of 85009339 is about 439.6990693682.

The spelling of 85009339 in words is "eighty-five million, nine thousand, three hundred thirty-nine".