11080891 has 4 divisors (see below), whose sum is σ = 11088000. Its totient is φ = 11073784.

The previous prime is 11080859. The next prime is 11080907. The reversal of 11080891 is 19808011.

11080891 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: 19808011 = 59 ⋅335729.

It is a cyclic number.

It is not a de Polignac number, because 11080891 - 2⁵ = 11080859 is a prime.

It is a super-2 number, since 2×11080891² = 245572290707762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11080841) 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, 91 + ... + 4708.

It is an arithmetic number, because the mean of its divisors is an integer number (2772000).

Almost surely, 2^11080891 is an apocalyptic number.

11080891 is a deficient number, since it is larger than the sum of its proper divisors (7109).

11080891 is an equidigital number, since it uses as much as digits as its factorization.

11080891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7108.

The product of its (nonzero) digits is 576, while the sum is 28.

The square root of 11080891 is about 3328.7972302320. The cubic root of 11080891 is about 222.9418296262.

The spelling of 11080891 in words is "eleven million, eighty thousand, eight hundred ninety-one".