11817996 has 24 divisors (see below), whose sum is σ = 27988800. Its totient is φ = 3880272.

The previous prime is 11817983. The next prime is 11817997. The reversal of 11817996 is 69971811.

It is not an unprimeable number, because it can be changed into a prime (11817997) 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, 6546 + ... + 8153.

It is an arithmetic number, because the mean of its divisors is an integer number (1166200).

Almost surely, 2^11817996 is an apocalyptic number.

It is an amenable number.

11817996 is an abundant number, since it is smaller than the sum of its proper divisors (16170804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11817996 is a wasteful number, since it uses less digits than its factorization.

11817996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14773 (or 14771 counting only the distinct ones).

The product of its digits is 27216, while the sum is 42.

The square root of 11817996 is about 3437.7312285867. The cubic root of 11817996 is about 227.7794882459.

The spelling of 11817996 in words is "eleven million, eight hundred seventeen thousand, nine hundred ninety-six".