85173082 has 4 divisors (see below), whose sum is σ = 127759626. Its totient is φ = 42586540.

The previous prime is 85173079. The next prime is 85173083. The reversal of 85173082 is 28037158.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 76930441 + 8242641 = 8771^2 + 2871^2 .

It is not an unprimeable number, because it can be changed into a prime (85173083) 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, 21293269 + ... + 21293272.

Almost surely, 2^85173082 is an apocalyptic number.

85173082 is a deficient number, since it is larger than the sum of its proper divisors (42586544).

85173082 is a wasteful number, since it uses less digits than its factorization.

85173082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42586543.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 85173082 is about 9228.9263730945. The cubic root of 85173082 is about 439.9812009875.

The spelling of 85173082 in words is "eighty-five million, one hundred seventy-three thousand, eighty-two".