22308893 has 2 divisors, whose sum is σ = 22308894. Its totient is φ = 22308892.

The previous prime is 22308887. The next prime is 22308899. The reversal of 22308893 is 39880322.

It is a balanced prime because it is at equal distance from previous prime (22308887) and next prime (22308899).

It can be written as a sum of positive squares in only one way, i.e., 17455684 + 4853209 = 4178^2 + 2203^2 .

It is a cyclic number.

It is not a de Polignac number, because 22308893 - 2⁴ = 22308877 is a prime.

It is a super-3 number, since 3×22308893³ (a number of 23 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22308899) 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 as a sum of consecutive naturals, namely, 11154446 + 11154447.

It is an arithmetic number, because the mean of its divisors is an integer number (11154447).

Almost surely, 2^22308893 is an apocalyptic number.

It is an amenable number.

22308893 is a deficient number, since it is larger than the sum of its proper divisors (1).

22308893 is an equidigital number, since it uses as much as digits as its factorization.

22308893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 22308893 is about 4723.2290861232. The cubic root of 22308893 is about 281.5092524409.

The spelling of 22308893 in words is "twenty-two million, three hundred eight thousand, eight hundred ninety-three".