2009887 has 8 divisors (see below), whose sum is σ = 2218320. Its totient is φ = 1805760.

The previous prime is 2009881. The next prime is 2009897. The reversal of 2009887 is 7889002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2009887 - 2³ = 2009879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2009881) 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, 48 + ... + 2005.

It is an arithmetic number, because the mean of its divisors is an integer number (277290).

2^2009887 is an apocalyptic number.

2009887 is a deficient number, since it is larger than the sum of its proper divisors (208433).

2009887 is a wasteful number, since it uses less digits than its factorization.

2009887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2153.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 2009887 is about 1417.7048352884. The cubic root of 2009887 is about 126.1993778031.

The spelling of 2009887 in words is "two million, nine thousand, eight hundred eighty-seven".