22184389 has 2 divisors, whose sum is σ = 22184390. Its totient is φ = 22184388.

The previous prime is 22184377. The next prime is 22184401. The reversal of 22184389 is 98348122.

It is a balanced prime because it is at equal distance from previous prime (22184377) and next prime (22184401).

It can be written as a sum of positive squares in only one way, i.e., 22184100 + 289 = 4710^2 + 17^2 .

It is a cyclic number.

It is not a de Polignac number, because 22184389 - 2⁹ = 22183877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22184359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11092194 + 11092195.

It is an arithmetic number, because the mean of its divisors is an integer number (11092195).

Almost surely, 2^22184389 is an apocalyptic number.

It is an amenable number.

22184389 is a deficient number, since it is larger than the sum of its proper divisors (1).

22184389 is an equidigital number, since it uses as much as digits as its factorization.

22184389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 37.

The square root of 22184389 is about 4710.0306793056. The cubic root of 22184389 is about 280.9845822605.

The spelling of 22184389 in words is "twenty-two million, one hundred eighty-four thousand, three hundred eighty-nine".