2887990 has 16 divisors (see below), whose sum is σ = 5941152. Its totient is φ = 990144.

The previous prime is 2887987. The next prime is 2887993. The reversal of 2887990 is 997882.

It is an interprime number because it is at equal distance from previous prime (2887987) and next prime (2887993).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2887993) 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, 20559 + ... + 20698.

It is an arithmetic number, because the mean of its divisors is an integer number (371322).

2^2887990 is an apocalyptic number.

2887990 is an abundant number, since it is smaller than the sum of its proper divisors (3053162).

2887990 is a wasteful number, since it uses less digits than its factorization.

2887990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41271.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 2887990 is about 1699.4087207026. The cubic root of 2887990 is about 142.4071828111.

The spelling of 2887990 in words is "two million, eight hundred eighty-seven thousand, nine hundred ninety".