2005887 has 16 divisors (see below), whose sum is σ = 3032960. Its totient is φ = 1168992.

The previous prime is 2005879. The next prime is 2005903. The reversal of 2005887 is 7885002.

It is not a de Polignac number, because 2005887 - 2³ = 2005879 is a prime.

It is an Ulam number.

It is a Duffinian number.

2005887 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 613 + ... + 2094.

It is an arithmetic number, because the mean of its divisors is an integer number (189560).

2^2005887 is an apocalyptic number.

2005887 is a deficient number, since it is larger than the sum of its proper divisors (1027073).

2005887 is a wasteful number, since it uses less digits than its factorization.

2005887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2742.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 2005887 is about 1416.2934018063. The cubic root of 2005887 is about 126.1156031500.

The spelling of 2005887 in words is "two million, five thousand, eight hundred eighty-seven".