11028109 has 8 divisors (see below), whose sum is σ = 11819520. Its totient is φ = 10262736.

The previous prime is 11028049. The next prime is 11028131. The reversal of 11028109 is 90182011.

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

It is a cyclic number.

It is not a de Polignac number, because 11028109 - 2⁷ = 11027981 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11028109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11028509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5629 + ... + 7330.

It is an arithmetic number, because the mean of its divisors is an integer number (1477440).

Almost surely, 2^11028109 is an apocalyptic number.

It is an amenable number.

11028109 is a deficient number, since it is larger than the sum of its proper divisors (791411).

11028109 is a wasteful number, since it uses less digits than its factorization.

11028109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13019.

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 11028109 is about 3320.8596778545. The cubic root of 11028109 is about 222.5872838548.

The spelling of 11028109 in words is "eleven million, twenty-eight thousand, one hundred nine".