2784427427 has 2 divisors, whose sum is σ = 2784427428. Its totient is φ = 2784427426.

The previous prime is 2784427369. The next prime is 2784427453. The reversal of 2784427427 is 7247244872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2784427427 - 2⁸ = 2784427171 is a prime.

It is not a weakly prime, because it can be changed into another prime (2784427927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1392213713 + 1392213714.

It is an arithmetic number, because the mean of its divisors is an integer number (1392213714).

Almost surely, 2^2784427427 is an apocalyptic number.

2784427427 is a deficient number, since it is larger than the sum of its proper divisors (1).

2784427427 is an equidigital number, since it uses as much as digits as its factorization.

2784427427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1404928, while the sum is 47.

The square root of 2784427427 is about 52767.6740722954. The cubic root of 2784427427 is about 1406.8419212237.

The spelling of 2784427427 in words is "two billion, seven hundred eighty-four million, four hundred twenty-seven thousand, four hundred twenty-seven".