2782291 has 2 divisors, whose sum is σ = 2782292. Its totient is φ = 2782290.

The previous prime is 2782279. The next prime is 2782319. The reversal of 2782291 is 1922872.

2782291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2782291 - 2⁷ = 2782163 is a prime.

It is a super-2 number, since 2×2782291² = 15482286417362, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2782201) 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, 1391145 + 1391146.

It is an arithmetic number, because the mean of its divisors is an integer number (1391146).

2^2782291 is an apocalyptic number.

2782291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2782291 is an equidigital number, since it uses as much as digits as its factorization.

2782291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 31.

The square root of 2782291 is about 1668.0200838119. The cubic root of 2782291 is about 140.6482016697.

The spelling of 2782291 in words is "two million, seven hundred eighty-two thousand, two hundred ninety-one".