11289286 has 4 divisors (see below), whose sum is σ = 16933932. Its totient is φ = 5644642.

The previous prime is 11289277. The next prime is 11289347. The reversal of 11289286 is 68298211.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2822320 + ... + 2822323.

It is an arithmetic number, because the mean of its divisors is an integer number (4233483).

Almost surely, 2^11289286 is an apocalyptic number.

11289286 is a deficient number, since it is larger than the sum of its proper divisors (5644646).

11289286 is an equidigital number, since it uses as much as digits as its factorization.

11289286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5644645.

The product of its digits is 13824, while the sum is 37.

The square root of 11289286 is about 3359.9532734846. The cubic root of 11289286 is about 224.3307587035.

It can be divided in two parts, 112 and 89286, that added together give a palindrome (89398).

The spelling of 11289286 in words is "eleven million, two hundred eighty-nine thousand, two hundred eighty-six".