11271689 has 8 divisors (see below), whose sum is σ = 13242432. Its totient is φ = 9458640.

The previous prime is 11271683. The next prime is 11271707. The reversal of 11271689 is 98617211.

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 11271689 - 2²⁰ = 10223113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11271683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39269 + ... + 39554.

It is an arithmetic number, because the mean of its divisors is an integer number (1655304).

Almost surely, 2^11271689 is an apocalyptic number.

It is an amenable number.

11271689 is a deficient number, since it is larger than the sum of its proper divisors (1970743).

11271689 is a wasteful number, since it uses less digits than its factorization.

11271689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78847.

The product of its digits is 6048, while the sum is 35.

The square root of 11271689 is about 3357.3336146412. Note that the first 3 decimals coincide. The cubic root of 11271689 is about 224.2141407232.

The spelling of 11271689 in words is "eleven million, two hundred seventy-one thousand, six hundred eighty-nine".