11869009 has 8 divisors (see below), whose sum is σ = 12623688. Its totient is φ = 11120640.

The previous prime is 11869007. The next prime is 11869021. The reversal of 11869009 is 90096811.

11869009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2259009 + 9610000 = 1503^2 + 3100^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11869009 - 2¹ = 11869007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11869007) 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, 2649 + ... + 5545.

It is an arithmetic number, because the mean of its divisors is an integer number (1577961).

Almost surely, 2^11869009 is an apocalyptic number.

It is an amenable number.

11869009 is a deficient number, since it is larger than the sum of its proper divisors (754679).

11869009 is a wasteful number, since it uses less digits than its factorization.

11869009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155.

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 11869009 is about 3445.1428127147. The cubic root of 11869009 is about 228.1067585089.

The spelling of 11869009 in words is "eleven million, eight hundred sixty-nine thousand, nine".