11976009 has 8 divisors (see below), whose sum is σ = 15984000. Its totient is φ = 7976016.

The previous prime is 11975993. The next prime is 11976047. The reversal of 11976009 is 90067911.

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

It is not a de Polignac number, because 11976009 - 2⁴ = 11975993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11976409) 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, 4992 + ... + 6990.

It is an arithmetic number, because the mean of its divisors is an integer number (1998000).

Almost surely, 2^11976009 is an apocalyptic number.

It is an amenable number.

11976009 is a deficient number, since it is larger than the sum of its proper divisors (4007991).

11976009 is a wasteful number, since it uses less digits than its factorization.

11976009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3999.

The product of its (nonzero) digits is 3402, while the sum is 33.

The square root of 11976009 is about 3460.6370800764. The cubic root of 11976009 is about 228.7901753915.

The spelling of 11976009 in words is "eleven million, nine hundred seventy-six thousand, nine".