11643355 has 16 divisors (see below), whose sum is σ = 14709600. Its totient is φ = 8834560.

The previous prime is 11643353. The next prime is 11643367. The reversal of 11643355 is 55334611.

11643355 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11643355 - 2¹ = 11643353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11643353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7875 + ... + 9235.

It is an arithmetic number, because the mean of its divisors is an integer number (919350).

Almost surely, 2^11643355 is an apocalyptic number.

11643355 is a deficient number, since it is larger than the sum of its proper divisors (3066245).

11643355 is a wasteful number, since it uses less digits than its factorization.

11643355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454.

The product of its digits is 5400, while the sum is 28.

The square root of 11643355 is about 3412.2360703797. The cubic root of 11643355 is about 226.6519081606.

Adding to 11643355 its reverse (55334611), we get a palindrome (66977966).

The spelling of 11643355 in words is "eleven million, six hundred forty-three thousand, three hundred fifty-five".