85517318 has 8 divisors (see below), whose sum is σ = 129212712. Its totient is φ = 42446416.

The previous prime is 85517297. The next prime is 85517321. The reversal of 85517318 is 81371558.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155780 + ... + 156327.

It is an arithmetic number, because the mean of its divisors is an integer number (16151589).

Almost surely, 2^85517318 is an apocalyptic number.

85517318 is a deficient number, since it is larger than the sum of its proper divisors (43695394).

85517318 is a wasteful number, since it uses less digits than its factorization.

85517318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312246.

The product of its digits is 33600, while the sum is 38.

The square root of 85517318 is about 9247.5574072292. The cubic root of 85517318 is about 440.5731477169.

Subtracting from 85517318 its reverse (81371558), we obtain a triangular number (4145760 = T₂₈₇₉).

The spelling of 85517318 in words is "eighty-five million, five hundred seventeen thousand, three hundred eighteen".