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885 = 3559
BaseRepresentation
bin1101110101
31012210
431311
512020
64033
72403
oct1565
91183
10885
11735
12619
13531
14473
153e0
hex375

885 has 8 divisors (see below), whose sum is σ = 1440. Its totient is φ = 464.

The previous prime is 883. The next prime is 887. The reversal of 885 is 588.

Subtracting from 885 its product of digits (320), we obtain a palindrome (565).

885 = T8 + T9 + ... + T17.

It is an interprime number because it is at equal distance from previous prime (883) and next prime (887).

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 885 - 21 = 883 is a prime.

885 is a lucky number.

It is a nialpdrome in base 10 and base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15 + ... + 44.

It is an arithmetic number, because the mean of its divisors is an integer number (180).

It is an amenable number.

885 is a deficient number, since it is larger than the sum of its proper divisors (555).

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

885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67.

The product of its digits is 320, while the sum is 21.

The square root of 885 is about 29.7489495613. The cubic root of 885 is about 9.6009547662.

The spelling of 885 in words is "eight hundred eighty-five", and thus it is an aban number and an oban number.

Divisors: 1 3 5 15 59 177 295 885