16304089 has 2 divisors, whose sum is σ = 16304090. Its totient is φ = 16304088.

The previous prime is 16304077. The next prime is 16304107. The reversal of 16304089 is 98040361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13630864 + 2673225 = 3692^2 + 1635^2 .

It is a cyclic number.

It is not a de Polignac number, because 16304089 - 2¹⁹ = 15779801 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16304089.

It is not a weakly prime, because it can be changed into another prime (16304059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8152044 + 8152045.

It is an arithmetic number, because the mean of its divisors is an integer number (8152045).

Almost surely, 2^16304089 is an apocalyptic number.

It is an amenable number.

16304089 is a deficient number, since it is larger than the sum of its proper divisors (1).

16304089 is an equidigital number, since it uses as much as digits as its factorization.

16304089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 16304089 is about 4037.8322154344. The cubic root of 16304089 is about 253.5705693588.

The spelling of 16304089 in words is "sixteen million, three hundred four thousand, eighty-nine".