2885 has 4 divisors (see below), whose sum is σ = 3468. Its totient is φ = 2304.

The previous prime is 2879. The next prime is 2887. The reversal of 2885 is 5882.

It can be divided in two parts, 2 and 885, that multiplied together give a triangular number (1770 = T_{59}).

2885 = 30^{2} + 31^{2} + 32^{2}.

2885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2209 + 676 = 47^2 + 26^2 .

It is a cyclic number.

It is not a de Polignac number, because 2885 - 2^{10} = 1861 is a prime.

It is a magnanimous number.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a self number, because there is not a number *n* which added to its sum of digits gives 2885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284 + ... + 293.

It is an arithmetic number, because the mean of its divisors is an integer number (867).

It is an amenable number.

2885 is a deficient number, since it is larger than the sum of its proper divisors (583).

2885 is an equidigital number, since it uses as much as digits as its factorization.

2885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582.

The product of its digits is 640, while the sum is 23.

The square root of 2885 is about 53.7121960080. The cubic root of 2885 is about 14.2358020071.

The spelling of 2885 in words is "two thousand, eight hundred eighty-five".

• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.059 sec. • engine limits •