9090006889 has 2 divisors, whose sum is σ = 9090006890. Its totient is φ = 9090006888.

The previous prime is 9090006883. The next prime is 9090006983. The reversal of 9090006889 is 9886000909.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5305665600 + 3784341289 = 72840^2 + 61517^2 .

It is an emirp because it is prime and its reverse (9886000909) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9090006889 - 2¹¹ = 9090004841 is a prime.

It is not a weakly prime, because it can be changed into another prime (9090006883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4545003444 + 4545003445.

It is an arithmetic number, because the mean of its divisors is an integer number (4545003445).

Almost surely, 2^9090006889 is an apocalyptic number.

It is an amenable number.

9090006889 is a deficient number, since it is larger than the sum of its proper divisors (1).

9090006889 is an equidigital number, since it uses as much as digits as its factorization.

9090006889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 49.

The square root of 9090006889 is about 95341.5276204446. The cubic root of 9090006889 is about 2086.9949785238.

The spelling of 9090006889 in words is "nine billion, ninety million, six thousand, eight hundred eighty-nine".