85204317 has 16 divisors (see below), whose sum is σ = 124761600. Its totient is φ = 51294000.

The previous prime is 85204313. The next prime is 85204321. The reversal of 85204317 is 71340258.

It is an interprime number because it is at equal distance from previous prime (85204313) and next prime (85204321).

It is not a de Polignac number, because 85204317 - 2² = 85204313 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85204313) 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 in 15 ways as a sum of consecutive naturals, for example, 3567 + ... + 13532.

It is an arithmetic number, because the mean of its divisors is an integer number (7797600).

Almost surely, 2^85204317 is an apocalyptic number.

It is an amenable number.

85204317 is a deficient number, since it is larger than the sum of its proper divisors (39557283).

85204317 is a wasteful number, since it uses less digits than its factorization.

85204317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17264.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 85204317 is about 9230.6184516532. The cubic root of 85204317 is about 440.0349782799.

It can be divided in two parts, 85 and 204317, that added together give a palindrome (204402).

The spelling of 85204317 in words is "eighty-five million, two hundred four thousand, three hundred seventeen".