2843121 has 4 divisors (see below), whose sum is σ = 3790832. Its totient is φ = 1895412.

The previous prime is 2843119. The next prime is 2843143. The reversal of 2843121 is 1213482.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2843121 - 2¹ = 2843119 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2843101) 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, 473851 + ... + 473856.

It is an arithmetic number, because the mean of its divisors is an integer number (947708).

2^2843121 is an apocalyptic number.

It is an amenable number.

2843121 is a deficient number, since it is larger than the sum of its proper divisors (947711).

2843121 is an equidigital number, since it uses as much as digits as its factorization.

2843121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947710.

The product of its digits is 384, while the sum is 21.

The square root of 2843121 is about 1686.1556867620. The cubic root of 2843121 is about 141.6658312907.

The spelling of 2843121 in words is "two million, eight hundred forty-three thousand, one hundred twenty-one".