22107289 has 4 divisors (see below), whose sum is σ = 22621456. Its totient is φ = 21593124.

The previous prime is 22107277. The next prime is 22107311. The reversal of 22107289 is 98270122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22107289 - 2⁷ = 22107161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22107289.

It is not an unprimeable number, because it can be changed into a prime (22107269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257019 + ... + 257104.

It is an arithmetic number, because the mean of its divisors is an integer number (5655364).

Almost surely, 2^22107289 is an apocalyptic number.

It is an amenable number.

22107289 is a deficient number, since it is larger than the sum of its proper divisors (514167).

22107289 is an equidigital number, since it uses as much as digits as its factorization.

22107289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514166.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 22107289 is about 4701.8388955812. The cubic root of 22107289 is about 280.6586915797.

The spelling of 22107289 in words is "twenty-two million, one hundred seven thousand, two hundred eighty-nine".