85189339 has 2 divisors, whose sum is σ = 85189340. Its totient is φ = 85189338.

The previous prime is 85189337. The next prime is 85189381. The reversal of 85189339 is 93398158.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85189339 - 2¹ = 85189337 is a prime.

Together with 85189337, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (85189337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42594669 + 42594670.

It is an arithmetic number, because the mean of its divisors is an integer number (42594670).

Almost surely, 2^85189339 is an apocalyptic number.

85189339 is a deficient number, since it is larger than the sum of its proper divisors (1).

85189339 is an equidigital number, since it uses as much as digits as its factorization.

85189339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 46.

The square root of 85189339 is about 9229.8070944089. The cubic root of 85189339 is about 440.0091923011.

The spelling of 85189339 in words is "eighty-five million, one hundred eighty-nine thousand, three hundred thirty-nine".