85693 has 4 divisors (see below), whose sum is σ = 87040. Its totient is φ = 84348.
The previous prime is 85691. The next prime is 85703. The reversal of 85693 is 39658.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 85693 - 21 = 85691 is a prime.
It is an Ulam number.
It is a Duffinian number.
85693 is a lucky number.
It is a zygodrome in base 3.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (85691) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 573 + ... + 706.
It is an arithmetic number, because the mean of its divisors is an integer number (21760).
285693 is an apocalyptic number.
It is an amenable number.
85693 is a deficient number, since it is larger than the sum of its proper divisors (1347).
85693 is a wasteful number, since it uses less digits than its factorization.
85693 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1346.
The product of its digits is 6480, while the sum is 31.
The square root of 85693 is about 292.7336673497. The cubic root of 85693 is about 44.0874637643.
It can be divided in two parts, 856 and 93, that added together give a palindrome (949).
The spelling of 85693 in words is "eighty-five thousand, six hundred ninety-three".
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