11565982 has 8 divisors (see below), whose sum is σ = 17384976. Its totient is φ = 5770992.

The previous prime is 11565979. The next prime is 11566013. The reversal of 11565982 is 28956511.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4743 + ... + 6754.

It is an arithmetic number, because the mean of its divisors is an integer number (2173122).

Almost surely, 2^11565982 is an apocalyptic number.

11565982 is a deficient number, since it is larger than the sum of its proper divisors (5818994).

11565982 is a wasteful number, since it uses less digits than its factorization.

11565982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12002.

The product of its digits is 21600, while the sum is 37.

The square root of 11565982 is about 3400.8795921055. The cubic root of 11565982 is about 226.1487391149.

The spelling of 11565982 in words is "eleven million, five hundred sixty-five thousand, nine hundred eighty-two".