22107643 has 2 divisors, whose sum is σ = 22107644. Its totient is φ = 22107642.

The previous prime is 22107637. The next prime is 22107661. The reversal of 22107643 is 34670122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22107643 - 2²¹ = 20010491 is a prime.

It is not a weakly prime, because it can be changed into another prime (22107443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11053821 + 11053822.

It is an arithmetic number, because the mean of its divisors is an integer number (11053822).

Almost surely, 2^22107643 is an apocalyptic number.

22107643 is a deficient number, since it is larger than the sum of its proper divisors (1).

22107643 is an equidigital number, since it uses as much as digits as its factorization.

22107643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 22107643 is about 4701.8765402762. The cubic root of 22107643 is about 280.6601896173.

Adding to 22107643 its reverse (34670122), we get a palindrome (56777765).

The spelling of 22107643 in words is "twenty-two million, one hundred seven thousand, six hundred forty-three".