11791089 has 12 divisors (see below), whose sum is σ = 17662736. Its totient is φ = 7860564.

The previous prime is 11791051. The next prime is 11791093. The reversal of 11791089 is 98019711.

It is not a de Polignac number, because 11791089 - 2⁸ = 11790833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11791009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24019 + ... + 24504.

Almost surely, 2^11791089 is an apocalyptic number.

It is an amenable number.

11791089 is a deficient number, since it is larger than the sum of its proper divisors (5871647).

11791089 is an frugal number, since it uses more digits than its factorization.

11791089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48538 (or 48526 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 36.

The square root of 11791089 is about 3433.8155163025. The cubic root of 11791089 is about 227.6064888095.

The spelling of 11791089 in words is "eleven million, seven hundred ninety-one thousand, eighty-nine".