22326809 has 2 divisors, whose sum is σ = 22326810. Its totient is φ = 22326808.

The previous prime is 22326791. The next prime is 22326817. The reversal of 22326809 is 90862322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12054784 + 10272025 = 3472^2 + 3205^2 .

It is a cyclic number.

It is not a de Polignac number, because 22326809 - 2⁸ = 22326553 is a prime.

It is a super-3 number, since 3×22326809³ (a number of 23 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22326869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11163404 + 11163405.

It is an arithmetic number, because the mean of its divisors is an integer number (11163405).

Almost surely, 2^22326809 is an apocalyptic number.

It is an amenable number.

22326809 is a deficient number, since it is larger than the sum of its proper divisors (1).

22326809 is an equidigital number, since it uses as much as digits as its factorization.

22326809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 22326809 is about 4725.1252893442. The cubic root of 22326809 is about 281.5845911595.

The spelling of 22326809 in words is "twenty-two million, three hundred twenty-six thousand, eight hundred nine".