2887243 has 4 divisors (see below), whose sum is σ = 2893968. Its totient is φ = 2880520.

The previous prime is 2887237. The next prime is 2887279. The reversal of 2887243 is 3427882.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3427882 = 2 ⋅1713941.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2887243 is a prime.

It is a Duffinian number.

2887243 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2887199 and 2887208.

It is not an unprimeable number, because it can be changed into a prime (2887043) 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, 2671 + ... + 3592.

It is an arithmetic number, because the mean of its divisors is an integer number (723492).

2^2887243 is an apocalyptic number.

2887243 is a deficient number, since it is larger than the sum of its proper divisors (6725).

2887243 is an equidigital number, since it uses as much as digits as its factorization.

2887243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6724.

The product of its digits is 21504, while the sum is 34.

The square root of 2887243 is about 1699.1889241635. The cubic root of 2887243 is about 142.3949035282.

The spelling of 2887243 in words is "two million, eight hundred eighty-seven thousand, two hundred forty-three".