22361789 has 2 divisors, whose sum is σ = 22361790. Its totient is φ = 22361788.

The previous prime is 22361753. The next prime is 22361791. The reversal of 22361789 is 98716322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17222500 + 5139289 = 4150^2 + 2267^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22361789 is a prime.

Together with 22361791, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22361189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11180894 + 11180895.

It is an arithmetic number, because the mean of its divisors is an integer number (11180895).

Almost surely, 2^22361789 is an apocalyptic number.

It is an amenable number.

22361789 is a deficient number, since it is larger than the sum of its proper divisors (1).

22361789 is an equidigital number, since it uses as much as digits as its factorization.

22361789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The square root of 22361789 is about 4728.8253298256. The cubic root of 22361789 is about 281.7315697609.

The spelling of 22361789 in words is "twenty-two million, three hundred sixty-one thousand, seven hundred eighty-nine".