22333309 has 2 divisors, whose sum is σ = 22333310. Its totient is φ = 22333308.

The previous prime is 22333307. The next prime is 22333313. The reversal of 22333309 is 90333322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21483225 + 850084 = 4635^2 + 922^2 .

It is a cyclic number.

It is not a de Polignac number, because 22333309 - 2¹ = 22333307 is a prime.

Together with 22333307, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22333301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11166654 + 11166655.

It is an arithmetic number, because the mean of its divisors is an integer number (11166655).

Almost surely, 2^22333309 is an apocalyptic number.

It is an amenable number.

22333309 is a deficient number, since it is larger than the sum of its proper divisors (1).

22333309 is an equidigital number, since it uses as much as digits as its factorization.

22333309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 25.

The square root of 22333309 is about 4725.8130517404. The cubic root of 22333309 is about 281.6119143991.

The spelling of 22333309 in words is "twenty-two million, three hundred thirty-three thousand, three hundred nine".