85071173 has 8 divisors (see below), whose sum is σ = 94190880. Its totient is φ = 76182480.

The previous prime is 85071139. The next prime is 85071241. The reversal of 85071173 is 37117058.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85071173 - 2²² = 80876869 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85071373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56978 + ... + 58451.

It is an arithmetic number, because the mean of its divisors is an integer number (11773860).

Almost surely, 2^85071173 is an apocalyptic number.

It is an amenable number.

85071173 is a deficient number, since it is larger than the sum of its proper divisors (9119707).

85071173 is a wasteful number, since it uses less digits than its factorization.

85071173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115507.

The product of its (nonzero) digits is 5880, while the sum is 32.

The square root of 85071173 is about 9223.4035474981. The cubic root of 85071173 is about 439.8056528062.

The spelling of 85071173 in words is "eighty-five million, seventy-one thousand, one hundred seventy-three".