85718 has 4 divisors (see below), whose sum is σ = 128580.
Its totient is φ = 42858.
The previous prime is 85717. The next prime is 85733. The reversal of 85718 is 81758.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81758 = 2 ⋅40879.
It is a plaindrome in base 14.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (85711) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21428 + ... + 21431.
It is an arithmetic number, because the mean of its divisors is an integer number (32145).
285718 is an apocalyptic number.
85718 is a deficient number, since it is larger than the sum of its proper divisors (42862).
85718 is a wasteful number, since it uses less digits than its factorization.
85718 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 42861.
The product of its digits is 2240, while the sum is 29.
The square root of 85718 is about 292.7763651663.
The cubic root of 85718 is about 44.0917506933.
The spelling of 85718 in words is "eighty-five thousand, seven hundred eighteen".