85175087 has 2 divisors, whose sum is σ = 85175088. Its totient is φ = 85175086.

The previous prime is 85175071. The next prime is 85175089. The reversal of 85175087 is 78057158.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85175087 - 2⁴ = 85175071 is a prime.

Together with 85175089, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85175089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42587543 + 42587544.

It is an arithmetic number, because the mean of its divisors is an integer number (42587544).

Almost surely, 2^85175087 is an apocalyptic number.

85175087 is a deficient number, since it is larger than the sum of its proper divisors (1).

85175087 is an equidigital number, since it uses as much as digits as its factorization.

85175087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78400, while the sum is 41.

The square root of 85175087 is about 9229.0349983083. The cubic root of 85175087 is about 439.9846533904.

The spelling of 85175087 in words is "eighty-five million, one hundred seventy-five thousand, eighty-seven".