1604081027 has 2 divisors, whose sum is σ = 1604081028. Its totient is φ = 1604081026.

The previous prime is 1604080999. The next prime is 1604081029. The reversal of 1604081027 is 7201804061.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1604081027 - 2⁶ = 1604080963 is a prime.

Together with 1604081029, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1604081029) 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, 802040513 + 802040514.

It is an arithmetic number, because the mean of its divisors is an integer number (802040514).

Almost surely, 2^1604081027 is an apocalyptic number.

1604081027 is a deficient number, since it is larger than the sum of its proper divisors (1).

1604081027 is an equidigital number, since it uses as much as digits as its factorization.

1604081027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 1604081027 is about 40050.9803500489. The cubic root of 1604081027 is about 1170.6006672927.

Adding to 1604081027 its reverse (7201804061), we get a palindrome (8805885088).

The spelling of 1604081027 in words is "one billion, six hundred four million, eighty-one thousand, twenty-seven".