85972175 has 6 divisors (see below), whose sum is σ = 106605528. Its totient is φ = 68777720.

The previous prime is 85972157. The next prime is 85972181. The reversal of 85972175 is 57127958.

It is not a de Polignac number, because 85972175 - 2¹² = 85968079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1719419 + ... + 1719468.

It is an arithmetic number, because the mean of its divisors is an integer number (17767588).

Almost surely, 2^85972175 is an apocalyptic number.

85972175 is a deficient number, since it is larger than the sum of its proper divisors (20633353).

85972175 is a wasteful number, since it uses less digits than its factorization.

85972175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3438897 (or 3438892 counting only the distinct ones).

The product of its digits is 176400, while the sum is 44.

The square root of 85972175 is about 9272.1181506709. The cubic root of 85972175 is about 441.3528865789.

The spelling of 85972175 in words is "eighty-five million, nine hundred seventy-two thousand, one hundred seventy-five".