2831641 has 2 divisors, whose sum is σ = 2831642. Its totient is φ = 2831640.

The previous prime is 2831623. The next prime is 2831651. The reversal of 2831641 is 1461382.

2831641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2496400 + 335241 = 1580^2 + 579^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2831641 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2831651) 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 as a sum of consecutive naturals, namely, 1415820 + 1415821.

It is an arithmetic number, because the mean of its divisors is an integer number (1415821).

2^2831641 is an apocalyptic number.

It is an amenable number.

2831641 is a deficient number, since it is larger than the sum of its proper divisors (1).

2831641 is an equidigital number, since it uses as much as digits as its factorization.

2831641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 25.

The square root of 2831641 is about 1682.7480500657. The cubic root of 2831641 is about 141.4749005496.

The spelling of 2831641 in words is "two million, eight hundred thirty-one thousand, six hundred forty-one".