1604319089 has 2 divisors, whose sum is σ = 1604319090. Its totient is φ = 1604319088.

The previous prime is 1604319077. The next prime is 1604319107. The reversal of 1604319089 is 9809134061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1405650064 + 198669025 = 37492^2 + 14095^2 .

It is an emirp because it is prime and its reverse (9809134061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1604319089 - 2²⁴ = 1587541873 is a prime.

It is not a weakly prime, because it can be changed into another prime (1604319289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802159544 + 802159545.

It is an arithmetic number, because the mean of its divisors is an integer number (802159545).

Almost surely, 2^1604319089 is an apocalyptic number.

It is an amenable number.

1604319089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1604319089 is an equidigital number, since it uses as much as digits as its factorization.

1604319089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 1604319089 is about 40053.9522269651. The cubic root of 1604319089 is about 1170.6585741246.

The spelling of 1604319089 in words is "one billion, six hundred four million, three hundred nineteen thousand, eighty-nine".