1428839927 has 2 divisors, whose sum is σ = 1428839928. Its totient is φ = 1428839926.

The previous prime is 1428839917. The next prime is 1428840011. The reversal of 1428839927 is 7299388241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1428839927 - 2⁴ = 1428839911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1428839917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714419963 + 714419964.

It is an arithmetic number, because the mean of its divisors is an integer number (714419964).

Almost surely, 2^1428839927 is an apocalyptic number.

1428839927 is a deficient number, since it is larger than the sum of its proper divisors (1).

1428839927 is an equidigital number, since it uses as much as digits as its factorization.

1428839927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 53.

The square root of 1428839927 is about 37799.9990343915. Note that the first 3 decimals coincide. The cubic root of 1428839927 is about 1126.3184350403.

The spelling of 1428839927 in words is "one billion, four hundred twenty-eight million, eight hundred thirty-nine thousand, nine hundred twenty-seven".