85175939 has 2 divisors, whose sum is σ = 85175940. Its totient is φ = 85175938.

The previous prime is 85175927. The next prime is 85175957. The reversal of 85175939 is 93957158.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85175939 - 2⁸ = 85175683 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 85175893 and 85175902.

It is not a weakly prime, because it can be changed into another prime (85175989) 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, 42587969 + 42587970.

It is an arithmetic number, because the mean of its divisors is an integer number (42587970).

Almost surely, 2^85175939 is an apocalyptic number.

85175939 is a deficient number, since it is larger than the sum of its proper divisors (1).

85175939 is an equidigital number, since it uses as much as digits as its factorization.

85175939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 340200, while the sum is 47.

The square root of 85175939 is about 9229.0811568650. The cubic root of 85175939 is about 439.9861204299.

The spelling of 85175939 in words is "eighty-five million, one hundred seventy-five thousand, nine hundred thirty-nine".