11663588 has 6 divisors (see below), whose sum is σ = 20411286. Its totient is φ = 5831792.

The previous prime is 11663579. The next prime is 11663593. The reversal of 11663588 is 88536611.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10903204 + 760384 = 3302^2 + 872^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1457945 + ... + 1457952.

It is an arithmetic number, because the mean of its divisors is an integer number (3401881).

Almost surely, 2^11663588 is an apocalyptic number.

It is an amenable number.

11663588 is a deficient number, since it is larger than the sum of its proper divisors (8747698).

11663588 is a wasteful number, since it uses less digits than its factorization.

11663588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2915901 (or 2915899 counting only the distinct ones).

The product of its digits is 34560, while the sum is 38.

The square root of 11663588 is about 3415.1995549309. The cubic root of 11663588 is about 226.7831187466.

The spelling of 11663588 in words is "eleven million, six hundred sixty-three thousand, five hundred eighty-eight".