10909009 has 2 divisors, whose sum is σ = 10909010. Its totient is φ = 10909008.

The previous prime is 10909001. The next prime is 10909033. The reversal of 10909009 is 90090901.

10909009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10857025 + 51984 = 3295^2 + 228^2 .

It is an emirp because it is prime and its reverse (90090901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10909009 - 2³ = 10909001 is a prime.

It is not a weakly prime, because it can be changed into another prime (10909001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5454504 + 5454505.

It is an arithmetic number, because the mean of its divisors is an integer number (5454505).

Almost surely, 2^10909009 is an apocalyptic number.

It is an amenable number.

10909009 is a deficient number, since it is larger than the sum of its proper divisors (1).

10909009 is an equidigital number, since it uses as much as digits as its factorization.

10909009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 729, while the sum is 28.

The square root of 10909009 is about 3302.8788957514. The cubic root of 10909009 is about 221.7830917095.

The spelling of 10909009 in words is "ten million, nine hundred nine thousand, nine".