438628027 has 2 divisors, whose sum is σ = 438628028. Its totient is φ = 438628026.

The previous prime is 438627997. The next prime is 438628037. The reversal of 438628027 is 720826834.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-438628027 is a prime.

It is not a weakly prime, because it can be changed into another prime (438628037) 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, 219314013 + 219314014.

It is an arithmetic number, because the mean of its divisors is an integer number (219314014).

Almost surely, 2^438628027 is an apocalyptic number.

438628027 is a deficient number, since it is larger than the sum of its proper divisors (1).

438628027 is an equidigital number, since it uses as much as digits as its factorization.

438628027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 438628027 is about 20943.4483072869. The cubic root of 438628027 is about 759.7991314718.

The spelling of 438628027 in words is "four hundred thirty-eight million, six hundred twenty-eight thousand, twenty-seven".