2887123 has 4 divisors (see below), whose sum is σ = 2980288. Its totient is φ = 2793960.

The previous prime is 2887117. The next prime is 2887133. The reversal of 2887123 is 3217882.

2887123 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, and also an emirpimes, since its reverse is a distinct semiprime: 3217882 = 2 ⋅1608941.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2887123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 93133 = 2887123 / (2 + 8 + 8 + 7 + 1 + 2 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2887133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46536 + ... + 46597.

It is an arithmetic number, because the mean of its divisors is an integer number (745072).

2^2887123 is an apocalyptic number.

2887123 is a deficient number, since it is larger than the sum of its proper divisors (93165).

2887123 is an equidigital number, since it uses as much as digits as its factorization.

2887123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93164.

The product of its digits is 5376, while the sum is 31.

The square root of 2887123 is about 1699.1536128320. The cubic root of 2887123 is about 142.3929307552.

The spelling of 2887123 in words is "two million, eight hundred eighty-seven thousand, one hundred twenty-three".