2836861 has 2 divisors, whose sum is σ = 2836862. Its totient is φ = 2836860.

The previous prime is 2836849. The next prime is 2836879. The reversal of 2836861 is 1686382.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2788900 + 47961 = 1670^2 + 219^2 .

It is a cyclic number.

It is not a de Polignac number, because 2836861 - 2⁷ = 2836733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2836261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1418430 + 1418431.

It is an arithmetic number, because the mean of its divisors is an integer number (1418431).

2^2836861 is an apocalyptic number.

It is an amenable number.

2836861 is a deficient number, since it is larger than the sum of its proper divisors (1).

2836861 is an equidigital number, since it uses as much as digits as its factorization.

2836861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 34.

The square root of 2836861 is about 1684.2983702420. The cubic root of 2836861 is about 141.5617813428.

The spelling of 2836861 in words is "two million, eight hundred thirty-six thousand, eight hundred sixty-one".