11691441 has 12 divisors (see below), whose sum is σ = 17776720. Its totient is φ = 7383960.

The previous prime is 11691439. The next prime is 11691451. The reversal of 11691441 is 14419611.

11691441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11691441 - 2¹ = 11691439 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11691451) 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, 34015 + ... + 34356.

Almost surely, 2^11691441 is an apocalyptic number.

It is an amenable number.

11691441 is a deficient number, since it is larger than the sum of its proper divisors (6085279).

11691441 is a wasteful number, since it uses less digits than its factorization.

11691441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68396 (or 68393 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 11691441 is about 3419.2749231379. The cubic root of 11691441 is about 226.9634968829.

The spelling of 11691441 in words is "eleven million, six hundred ninety-one thousand, four hundred forty-one".