11089481 has 8 divisors (see below), whose sum is σ = 12049800. Its totient is φ = 10144512.

The previous prime is 11089471. The next prime is 11089487. The reversal of 11089481 is 18498011.

It can be written as a sum of positive squares in 4 ways, for example, as 33856 + 11055625 = 184^2 + 3325^2 .

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 11089481 - 2¹⁸ = 10827337 is a prime.

It is a super-2 number, since 2×11089481² = 245953177698722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11089487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2306 + ... + 5243.

It is an arithmetic number, because the mean of its divisors is an integer number (1506225).

Almost surely, 2^11089481 is an apocalyptic number.

It is an amenable number.

11089481 is a deficient number, since it is larger than the sum of its proper divisors (960319).

11089481 is a wasteful number, since it uses less digits than its factorization.

11089481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7675.

The product of its (nonzero) digits is 2304, while the sum is 32.

The square root of 11089481 is about 3330.0872360946. The cubic root of 11089481 is about 222.9994235408. Note that the first 3 decimals are identical.

The spelling of 11089481 in words is "eleven million, eighty-nine thousand, four hundred eighty-one".