11089447 has 4 divisors (see below), whose sum is σ = 11097016. Its totient is φ = 11081880.

The previous prime is 11089433. The next prime is 11089459. The reversal of 11089447 is 74498011.

11089447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 74498011 = 7 ⋅10642573.

It is a cyclic number.

It is not a de Polignac number, because 11089447 - 2⁷ = 11089319 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 (11089487) 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, 804 + ... + 4777.

It is an arithmetic number, because the mean of its divisors is an integer number (2774254).

Almost surely, 2^11089447 is an apocalyptic number.

11089447 is a deficient number, since it is larger than the sum of its proper divisors (7569).

11089447 is an equidigital number, since it uses as much as digits as its factorization.

11089447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7568.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 11089447 is about 3330.0821311193. The cubic root of 11089447 is about 222.9991956375. Note that the first 3 decimals are identical.

The spelling of 11089447 in words is "eleven million, eighty-nine thousand, four hundred forty-seven".