11353643 has 16 divisors (see below), whose sum is σ = 13440000. Its totient is φ = 9585576.

The previous prime is 11353627. The next prime is 11353687. The reversal of 11353643 is 34635311.

11353643 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 11353643 - 2⁴ = 11353627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11358643) 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, 26888 + ... + 27306.

It is an arithmetic number, because the mean of its divisors is an integer number (840000).

Almost surely, 2^11353643 is an apocalyptic number.

11353643 is a deficient number, since it is larger than the sum of its proper divisors (2086357).

11353643 is an frugal number, since it uses more digits than its factorization.

11353643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519 (or 505 counting only the distinct ones).

The product of its digits is 3240, while the sum is 26.

The square root of 11353643 is about 3369.5167309274. The cubic root of 11353643 is about 224.7562331156.

Adding to 11353643 its reverse (34635311), we get a palindrome (45988954).

The spelling of 11353643 in words is "eleven million, three hundred fifty-three thousand, six hundred forty-three".