2806049 has 2 divisors, whose sum is σ = 2806050. Its totient is φ = 2806048.

The previous prime is 2806031. The next prime is 2806073. The reversal of 2806049 is 9406082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1517824 + 1288225 = 1232^2 + 1135^2 .

It is a cyclic number.

It is not a de Polignac number, because 2806049 - 2¹⁶ = 2740513 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2806249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1403024 + 1403025.

It is an arithmetic number, because the mean of its divisors is an integer number (1403025).

2^2806049 is an apocalyptic number.

It is an amenable number.

2806049 is a deficient number, since it is larger than the sum of its proper divisors (1).

2806049 is an equidigital number, since it uses as much as digits as its factorization.

2806049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 2806049 is about 1675.1265623827. The cubic root of 2806049 is about 141.0473995194.

It can be divided in two parts, 280 and 6049, that multiplied together give a triangular number (1693720 = T₁₈₄₀).

The spelling of 2806049 in words is "two million, eight hundred six thousand, forty-nine".