85655718 has 40 divisors (see below), whose sum is σ = 194588328. Its totient is φ = 28156896.

The previous prime is 85655711. The next prime is 85655719. The reversal of 85655718 is 81755658.

85655718 is a `hidden beast` number, since 85 + 6 + 557 + 18 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85655711) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8205 + ... + 15447.

Almost surely, 2^85655718 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85655718, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97294164).

85655718 is an abundant number, since it is smaller than the sum of its proper divisors (108932610).

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

85655718 is a wasteful number, since it uses less digits than its factorization.

85655718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7330 (or 7321 counting only the distinct ones).

The product of its digits is 336000, while the sum is 45.

The square root of 85655718 is about 9255.0374391463. The cubic root of 85655718 is about 440.8106920364.

The spelling of 85655718 in words is "eighty-five million, six hundred fifty-five thousand, seven hundred eighteen".