428224127 has 2 divisors, whose sum is σ = 428224128. Its totient is φ = 428224126.

The previous prime is 428224117. The next prime is 428224151. The reversal of 428224127 is 721422824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 428224127 - 2⁸ = 428223871 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 428224093 and 428224102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428224117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214112063 + 214112064.

It is an arithmetic number, because the mean of its divisors is an integer number (214112064).

Almost surely, 2^428224127 is an apocalyptic number.

428224127 is a deficient number, since it is larger than the sum of its proper divisors (1).

428224127 is an equidigital number, since it uses as much as digits as its factorization.

428224127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14336, while the sum is 32.

The square root of 428224127 is about 20693.5769503486. The cubic root of 428224127 is about 753.7437272116.

The spelling of 428224127 in words is "four hundred twenty-eight million, two hundred twenty-four thousand, one hundred twenty-seven".