13322643 has 4 divisors (see below), whose sum is σ = 17763528. Its totient is φ = 8881760.

The previous prime is 13322633. The next prime is 13322651. The reversal of 13322643 is 34622331.

13322643 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34622331 = 3 ⋅11540777.

It is a cyclic number.

It is not a de Polignac number, because 13322643 - 2¹⁰ = 13321619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13322633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2220438 + ... + 2220443.

It is an arithmetic number, because the mean of its divisors is an integer number (4440882).

Almost surely, 2^13322643 is an apocalyptic number.

13322643 is a deficient number, since it is larger than the sum of its proper divisors (4440885).

13322643 is an equidigital number, since it uses as much as digits as its factorization.

13322643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4440884.

The product of its digits is 2592, while the sum is 24.

The square root of 13322643 is about 3650.0195889885. The cubic root of 13322643 is about 237.0628293961.

Adding to 13322643 its reverse (34622331), we get a palindrome (47944974).

The spelling of 13322643 in words is "thirteen million, three hundred twenty-two thousand, six hundred forty-three".