2784043 has 2 divisors, whose sum is σ = 2784044. Its totient is φ = 2784042.

The previous prime is 2784007. The next prime is 2784049. The reversal of 2784043 is 3404872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2784043 - 2²¹ = 686891 is a prime.

It is not a weakly prime, because it can be changed into another prime (2784049) 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, 1392021 + 1392022.

It is an arithmetic number, because the mean of its divisors is an integer number (1392022).

2^2784043 is an apocalyptic number.

2784043 is a deficient number, since it is larger than the sum of its proper divisors (1).

2784043 is an equidigital number, since it uses as much as digits as its factorization.

2784043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 2784043 is about 1668.5451746956. The cubic root of 2784043 is about 140.6777173871.

The spelling of 2784043 in words is "two million, seven hundred eighty-four thousand, forty-three".