11643271 has 8 divisors (see below), whose sum is σ = 12071840. Its totient is φ = 11220768.

The previous prime is 11643251. The next prime is 11643293. The reversal of 11643271 is 17234611.

11643271 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11643271 - 2⁹ = 11642759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11643241) 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, 2590 + ... + 5476.

It is an arithmetic number, because the mean of its divisors is an integer number (1508980).

Almost surely, 2^11643271 is an apocalyptic number.

11643271 is a deficient number, since it is larger than the sum of its proper divisors (428569).

11643271 is a wasteful number, since it uses less digits than its factorization.

11643271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3033.

The product of its digits is 1008, while the sum is 25.

The square root of 11643271 is about 3412.2237617132. The cubic root of 11643271 is about 226.6513631056.

Adding to 11643271 its reverse (17234611), we get a palindrome (28877882).

The spelling of 11643271 in words is "eleven million, six hundred forty-three thousand, two hundred seventy-one".