11880009 has 12 divisors (see below), whose sum is σ = 17252352. Its totient is φ = 7877400.

The previous prime is 11879999. The next prime is 11880023. The reversal of 11880009 is 90008811.

It is not a de Polignac number, because 11880009 - 2⁴ = 11879993 is a prime.

It is a super-2 number, since 2×11880009² = 282269227680162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11880079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1737 + ... + 5174.

It is an arithmetic number, because the mean of its divisors is an integer number (1437696).

Almost surely, 2^11880009 is an apocalyptic number.

It is an amenable number.

11880009 is a deficient number, since it is larger than the sum of its proper divisors (5372343).

11880009 is a wasteful number, since it uses less digits than its factorization.

11880009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7108 (or 7105 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The square root of 11880009 is about 3446.7388935050. The cubic root of 11880009 is about 228.1772052662.

The spelling of 11880009 in words is "eleven million, eight hundred eighty thousand, nine".