10969209 has 8 divisors (see below), whose sum is σ = 16250720. Its totient is φ = 7312788.

The previous prime is 10969207. The next prime is 10969219. The reversal of 10969209 is 90296901.

10969209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10969209 - 2¹ = 10969207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10969201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203107 + ... + 203160.

It is an arithmetic number, because the mean of its divisors is an integer number (2031340).

Almost surely, 2^10969209 is an apocalyptic number.

It is an amenable number.

10969209 is a deficient number, since it is larger than the sum of its proper divisors (5281511).

10969209 is an equidigital number, since it uses as much as digits as its factorization.

10969209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406276 (or 406270 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 10969209 is about 3311.9796195025. The cubic root of 10969209 is about 222.1903043140.

The spelling of 10969209 in words is "ten million, nine hundred sixty-nine thousand, two hundred nine".