11088389 has 4 divisors (see below), whose sum is σ = 11941356. Its totient is φ = 10235424.

The previous prime is 11088379. The next prime is 11088463. The reversal of 11088389 is 98388011.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7317025 + 3771364 = 2705^2 + 1942^2 .

It is a cyclic number.

It is not a de Polignac number, because 11088389 - 2⁴ = 11088373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11088349) 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, 426464 + ... + 426489.

It is an arithmetic number, because the mean of its divisors is an integer number (2985339).

Almost surely, 2^11088389 is an apocalyptic number.

It is an amenable number.

11088389 is a deficient number, since it is larger than the sum of its proper divisors (852967).

11088389 is an equidigital number, since it uses as much as digits as its factorization.

11088389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852966.

The product of its (nonzero) digits is 13824, while the sum is 38.

The square root of 11088389 is about 3329.9232723893. The cubic root of 11088389 is about 222.9921035900.

The spelling of 11088389 in words is "eleven million, eighty-eight thousand, three hundred eighty-nine".