11009818 has 8 divisors (see below), whose sum is σ = 16530912. Its totient is φ = 5499516.

The previous prime is 11009807. The next prime is 11009819. The reversal of 11009818 is 81890011.

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

It is not an unprimeable number, because it can be changed into a prime (11009819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721 + ... + 4747.

It is an arithmetic number, because the mean of its divisors is an integer number (2066364).

Almost surely, 2^11009818 is an apocalyptic number.

11009818 is a deficient number, since it is larger than the sum of its proper divisors (5521094).

11009818 is a wasteful number, since it uses less digits than its factorization.

11009818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5396.

The product of its (nonzero) digits is 576, while the sum is 28.

The square root of 11009818 is about 3318.1045794248. The cubic root of 11009818 is about 222.4641561584.

Adding to 11009818 its reverse (81890011), we get a palindrome (92899829).

The spelling of 11009818 in words is "eleven million, nine thousand, eight hundred eighteen".