2808427 has 2 divisors, whose sum is σ = 2808428. Its totient is φ = 2808426.

The previous prime is 2808419. The next prime is 2808433. The reversal of 2808427 is 7248082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2808427 - 2³ = 2808419 is a prime.

2808427 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2808437) 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, 1404213 + 1404214.

It is an arithmetic number, because the mean of its divisors is an integer number (1404214).

2^2808427 is an apocalyptic number.

2808427 is a deficient number, since it is larger than the sum of its proper divisors (1).

2808427 is an equidigital number, since it uses as much as digits as its factorization.

2808427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 2808427 is about 1675.8362091804. The cubic root of 2808427 is about 141.0872320398.

The spelling of 2808427 in words is "two million, eight hundred eight thousand, four hundred twenty-seven".