2881843 has 4 divisors (see below), whose sum is σ = 2916648. Its totient is φ = 2847040.

The previous prime is 2881799. The next prime is 2881859. The reversal of 2881843 is 3481882.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2881843 - 2¹⁷ = 2750771 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2881799 and 2881808.

It is not an unprimeable number, because it can be changed into a prime (2881873) 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, 17278 + ... + 17443.

It is an arithmetic number, because the mean of its divisors is an integer number (729162).

2^2881843 is an apocalyptic number.

2881843 is a deficient number, since it is larger than the sum of its proper divisors (34805).

2881843 is an equidigital number, since it uses as much as digits as its factorization.

2881843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34804.

The product of its digits is 12288, while the sum is 34.

The square root of 2881843 is about 1697.5991870875. The cubic root of 2881843 is about 142.3060745710.

The spelling of 2881843 in words is "two million, eight hundred eighty-one thousand, eight hundred forty-three".