85587318 has 12 divisors (see below), whose sum is σ = 185439228. Its totient is φ = 28529100.

The previous prime is 85587289. The next prime is 85587319. The reversal of 85587318 is 81378558.

It is a happy 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 (85587319) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2377408 + ... + 2377443.

It is an arithmetic number, because the mean of its divisors is an integer number (15453269).

Almost surely, 2^85587318 is an apocalyptic number.

85587318 is an abundant number, since it is smaller than the sum of its proper divisors (99851910).

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

85587318 is a wasteful number, since it uses less digits than its factorization.

85587318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4754859 (or 4754856 counting only the distinct ones).

The product of its digits is 268800, while the sum is 45.

The square root of 85587318 is about 9251.3414162488. The cubic root of 85587318 is about 440.6933249713.

It can be divided in two parts, 85587 and 318, that added together give a triangular number (85905 = T₄₁₄).

The spelling of 85587318 in words is "eighty-five million, five hundred eighty-seven thousand, three hundred eighteen".