85317516 has 24 divisors (see below), whose sum is σ = 221193840. Its totient is φ = 28439136.

The previous prime is 85317497. The next prime is 85317517. The reversal of 85317516 is 61571358.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (85317517) 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, 394881 + ... + 395096.

It is an arithmetic number, because the mean of its divisors is an integer number (9216410).

Almost surely, 2^85317516 is an apocalyptic number.

It is an amenable number.

85317516 is an abundant number, since it is smaller than the sum of its proper divisors (135876324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85317516 is a wasteful number, since it uses less digits than its factorization.

85317516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789990 (or 789982 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 85317516 is about 9236.7481290766. The cubic root of 85317516 is about 440.2297629197.

The spelling of 85317516 in words is "eighty-five million, three hundred seventeen thousand, five hundred sixteen".