11662988 has 18 divisors (see below), whose sum is σ = 21144396. Its totient is φ = 5628784.

The previous prime is 11662927. The next prime is 11662993. The reversal of 11662988 is 88926611.

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 in 5 ways as a sum of consecutive naturals, for example, 1631 + ... + 5097.

Almost surely, 2^11662988 is an apocalyptic number.

It is an amenable number.

11662988 is a deficient number, since it is larger than the sum of its proper divisors (9481408).

11662988 is a wasteful number, since it uses less digits than its factorization.

11662988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3529 (or 3498 counting only the distinct ones).

The product of its digits is 41472, while the sum is 41.

The square root of 11662988 is about 3415.1117112036. Note that the first 3 decimals coincide. The cubic root of 11662988 is about 226.7792299431.

The spelling of 11662988 in words is "eleven million, six hundred sixty-two thousand, nine hundred eighty-eight".