10909289 has 2 divisors, whose sum is σ = 10909290. Its totient is φ = 10909288.

The previous prime is 10909259. The next prime is 10909309. The reversal of 10909289 is 98290901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8219689 + 2689600 = 2867^2 + 1640^2 .

It is a cyclic number.

It is not a de Polignac number, because 10909289 - 2⁸ = 10909033 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (10909259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5454644 + 5454645.

It is an arithmetic number, because the mean of its divisors is an integer number (5454645).

Almost surely, 2^10909289 is an apocalyptic number.

It is an amenable number.

10909289 is a deficient number, since it is larger than the sum of its proper divisors (1).

10909289 is an equidigital number, since it uses as much as digits as its factorization.

10909289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 10909289 is about 3302.9212827435. The cubic root of 10909289 is about 221.7849891851.

The spelling of 10909289 in words is "ten million, nine hundred nine thousand, two hundred eighty-nine".