99885 has 8 divisors (see below), whose sum is σ = 159840. Its totient is φ = 53264.
The previous prime is 99881. The next prime is 99901. The reversal of 99885 is 58899.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 99885 - 22 = 99881 is a prime.
99885 is a lucky number.
It is a nialpdrome in base 10.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (99881) 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, 3315 + ... + 3344.
It is an arithmetic number, because the mean of its divisors is an integer number (19980).
299885 is an apocalyptic number.
It is an amenable number.
99885 is a deficient number, since it is larger than the sum of its proper divisors (59955).
99885 is a wasteful number, since it uses less digits than its factorization.
99885 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6667.
The product of its digits is 25920, while the sum is 39.
The square root of 99885 is about 316.0458827449. The cubic root of 99885 is about 46.3980887540.
The spelling of 99885 in words is "ninety-nine thousand, eight hundred eighty-five".
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