11876809 has 16 divisors (see below), whose sum is σ = 14376960. Its totient is φ = 9591120.

The previous prime is 11876803. The next prime is 11876833. The reversal of 11876809 is 90867811.

It is not a de Polignac number, because 11876809 - 2³ = 11876801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11876801) 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 in 15 ways as a sum of consecutive naturals, for example, 10912 + ... + 11950.

It is an arithmetic number, because the mean of its divisors is an integer number (898560).

Almost surely, 2^11876809 is an apocalyptic number.

It is an amenable number.

11876809 is a deficient number, since it is larger than the sum of its proper divisors (2500151).

11876809 is a wasteful number, since it uses less digits than its factorization.

11876809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140.

The product of its (nonzero) digits is 24192, while the sum is 40.

The square root of 11876809 is about 3446.2746553344. The cubic root of 11876809 is about 228.1567161508.

The spelling of 11876809 in words is "eleven million, eight hundred seventy-six thousand, eight hundred nine".