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895 = 5179
BaseRepresentation
bin1101111111
31020011
431333
512040
64051
72416
oct1577
91204
10895
11744
12627
1353b
1447d
153ea
hex37f

895 has 4 divisors (see below), whose sum is σ = 1080. Its totient is φ = 712.

The previous prime is 887. The next prime is 907. The reversal of 895 is 598.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 895 - 23 = 887 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

895 is a lucky number.

It is a plaindrome in base 8, base 14 and base 16.

It is a nialpdrome in base 11.

It is a congruent number.

It is an unprimeable number.

Being equal to 7×27-1, it is a Woodall number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85 + ... + 94.

It is an arithmetic number, because the mean of its divisors is an integer number (270).

895 is a deficient number, since it is larger than the sum of its proper divisors (185).

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

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

The sum of its prime factors is 184.

The product of its digits is 360, while the sum is 22.

The square root of 895 is about 29.9165506033. The cubic root of 895 is about 9.6369812004.

The spelling of 895 in words is "eight hundred ninety-five", and is thus an aban number and an oban number.

Divisors: 1 5 179 895