2731841 has 4 divisors (see below), whose sum is σ = 3122112. Its totient is φ = 2341572.

The previous prime is 2731837. The next prime is 2731847. The reversal of 2731841 is 1481372.

2731841 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2731841 - 2² = 2731837 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2731841.

It is not an unprimeable number, because it can be changed into a prime (2731847) 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, 195125 + ... + 195138.

It is an arithmetic number, because the mean of its divisors is an integer number (780528).

2^2731841 is an apocalyptic number.

It is an amenable number.

2731841 is a deficient number, since it is larger than the sum of its proper divisors (390271).

2731841 is an equidigital number, since it uses as much as digits as its factorization.

2731841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390270.

The product of its digits is 1344, while the sum is 26.

The square root of 2731841 is about 1652.8281822379. The cubic root of 2731841 is about 139.7929081007.

The spelling of 2731841 in words is "two million, seven hundred thirty-one thousand, eight hundred forty-one".