11557984 has 24 divisors (see below), whose sum is σ = 22838760. Its totient is φ = 5757696.

The previous prime is 11557981. The next prime is 11557991. The reversal of 11557984 is 48975511.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11557981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11652 + ... + 12604.

It is an arithmetic number, because the mean of its divisors is an integer number (951615).

Almost surely, 2^11557984 is an apocalyptic number.

It is an amenable number.

11557984 is a deficient number, since it is larger than the sum of its proper divisors (11280776).

11557984 is an equidigital number, since it uses as much as digits as its factorization.

11557984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342 (or 1334 counting only the distinct ones).

The product of its digits is 50400, while the sum is 40.

The square root of 11557984 is about 3399.7035164849. The cubic root of 11557984 is about 226.0965990056.

The spelling of 11557984 in words is "eleven million, five hundred fifty-seven thousand, nine hundred eighty-four".