11326643 has 4 divisors (see below), whose sum is σ = 11518680. Its totient is φ = 11134608.

The previous prime is 11326633. The next prime is 11326657. The reversal of 11326643 is 34662311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34662311 = 23 ⋅1507057.

It is a cyclic number.

It is not a de Polignac number, because 11326643 - 2¹⁴ = 11310259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11326613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95930 + ... + 96047.

It is an arithmetic number, because the mean of its divisors is an integer number (2879670).

Almost surely, 2^11326643 is an apocalyptic number.

11326643 is a deficient number, since it is larger than the sum of its proper divisors (192037).

11326643 is an equidigital number, since it uses as much as digits as its factorization.

11326643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192036.

The product of its digits is 2592, while the sum is 26.

The square root of 11326643 is about 3365.5078368650. The cubic root of 11326643 is about 224.5779280824.

Adding to 11326643 its reverse (34662311), we get a palindrome (45988954).

The spelling of 11326643 in words is "eleven million, three hundred twenty-six thousand, six hundred forty-three".