10669909 has 2 divisors, whose sum is σ = 10669910. Its totient is φ = 10669908.

The previous prime is 10669871. The next prime is 10669913. The reversal of 10669909 is 90996601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8282884 + 2387025 = 2878^2 + 1545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10669909 is a prime.

It is a super-2 number, since 2×10669909² = 227693916136562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10669969) 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, 5334954 + 5334955.

It is an arithmetic number, because the mean of its divisors is an integer number (5334955).

Almost surely, 2^10669909 is an apocalyptic number.

It is an amenable number.

10669909 is a deficient number, since it is larger than the sum of its proper divisors (1).

10669909 is an equidigital number, since it uses as much as digits as its factorization.

10669909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26244, while the sum is 40.

The square root of 10669909 is about 3266.4826648859. The cubic root of 10669909 is about 220.1507850601.

The spelling of 10669909 in words is "ten million, six hundred sixty-nine thousand, nine hundred nine".