1069909 has 4 divisors (see below), whose sum is σ = 1126240. Its totient is φ = 1013580.

The previous prime is 1069867. The next prime is 1069919. The reversal of 1069909 is 9099601.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1069909 - 2¹³ = 1061717 is a prime.

It is a super-2 number, since 2×1069909² = 2289410536562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1069919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28137 + ... + 28174.

It is an arithmetic number, because the mean of its divisors is an integer number (281560).

2^1069909 is an apocalyptic number.

1069909 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1069909 is a deficient number, since it is larger than the sum of its proper divisors (56331).

1069909 is an equidigital number, since it uses as much as digits as its factorization.

1069909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56330.

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 1069909 is about 1034.3640558333. The cubic root of 1069909 is about 102.2780125424.

The spelling of 1069909 in words is "one million, sixty-nine thousand, nine hundred nine".