23327209 has 2 divisors, whose sum is σ = 23327210. Its totient is φ = 23327208.

The previous prime is 23327207. The next prime is 23327257. The reversal of 23327209 is 90272332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19536400 + 3790809 = 4420^2 + 1947^2 .

It is a cyclic number.

It is not a de Polignac number, because 23327209 - 2¹ = 23327207 is a prime.

Together with 23327207, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23327207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11663604 + 11663605.

It is an arithmetic number, because the mean of its divisors is an integer number (11663605).

Almost surely, 2^23327209 is an apocalyptic number.

It is an amenable number.

23327209 is a deficient number, since it is larger than the sum of its proper divisors (1).

23327209 is an equidigital number, since it uses as much as digits as its factorization.

23327209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 23327209 is about 4829.8249450679. The cubic root of 23327209 is about 285.7289598059.

The spelling of 23327209 in words is "twenty-three million, three hundred twenty-seven thousand, two hundred nine".