11089439 has 4 divisors (see below), whose sum is σ = 11098656. Its totient is φ = 11080224.

The previous prime is 11089433. The next prime is 11089459. The reversal of 11089439 is 93498011.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11089439 is a prime.

It is a super-3 number, since 3×11089439³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11089399 and 11089408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11089433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2474 + ... + 5319.

It is an arithmetic number, because the mean of its divisors is an integer number (2774664).

Almost surely, 2^11089439 is an apocalyptic number.

11089439 is a deficient number, since it is larger than the sum of its proper divisors (9217).

11089439 is an equidigital number, since it uses as much as digits as its factorization.

11089439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9216.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 11089439 is about 3330.0809299475. The cubic root of 11089439 is about 222.9991420131. Note that the first 3 decimals are identical.

The spelling of 11089439 in words is "eleven million, eighty-nine thousand, four hundred thirty-nine".