11288986 has 16 divisors (see below), whose sum is σ = 17991936. Its totient is φ = 5294016.

The previous prime is 11288923. The next prime is 11288999. The reversal of 11288986 is 68988211.

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, 18295 + ... + 18901.

It is an arithmetic number, because the mean of its divisors is an integer number (1124496).

Almost surely, 2^11288986 is an apocalyptic number.

11288986 is a deficient number, since it is larger than the sum of its proper divisors (6702950).

11288986 is a wasteful number, since it uses less digits than its factorization.

11288986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173.

The product of its digits is 55296, while the sum is 43.

The square root of 11288986 is about 3359.9086297100. The cubic root of 11288986 is about 224.3287715739.

It can be divided in two parts, 112 and 88986, that added together give a palindrome (89098).

The spelling of 11288986 in words is "eleven million, two hundred eighty-eight thousand, nine hundred eighty-six".