11587972 has 24 divisors (see below), whose sum is σ = 22240512. Its totient is φ = 5239200.

The previous prime is 11587951. The next prime is 11588009. The reversal of 11587972 is 27978511.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9222 + ... + 10402.

It is an arithmetic number, because the mean of its divisors is an integer number (926688).

Almost surely, 2^11587972 is an apocalyptic number.

It is an amenable number.

11587972 is a deficient number, since it is larger than the sum of its proper divisors (10652540).

11587972 is a wasteful number, since it uses less digits than its factorization.

11587972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419 (or 1417 counting only the distinct ones).

The product of its digits is 35280, while the sum is 40.

The square root of 11587972 is about 3404.1110440172. Note that the first 3 decimals coincide. The cubic root of 11587972 is about 226.2919712943.

The spelling of 11587972 in words is "eleven million, five hundred eighty-seven thousand, nine hundred seventy-two".