85392319 has 2 divisors, whose sum is σ = 85392320. Its totient is φ = 85392318.

The previous prime is 85392317. The next prime is 85392323. The reversal of 85392319 is 91329358.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85392319 - 2¹ = 85392317 is a prime.

It is a super-2 number, since 2×85392319² = 14583696288395522, which contains 22 as substring.

Together with 85392317, 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 (85392311) 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, 42696159 + 42696160.

It is an arithmetic number, because the mean of its divisors is an integer number (42696160).

Almost surely, 2^85392319 is an apocalyptic number.

85392319 is a deficient number, since it is larger than the sum of its proper divisors (1).

85392319 is an equidigital number, since it uses as much as digits as its factorization.

85392319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 40.

The square root of 85392319 is about 9240.7964483588. The cubic root of 85392319 is about 440.3583839779.

The spelling of 85392319 in words is "eighty-five million, three hundred ninety-two thousand, three hundred nineteen".