23282309 has 2 divisors, whose sum is σ = 23282310. Its totient is φ = 23282308.

The previous prime is 23282267. The next prime is 23282321. The reversal of 23282309 is 90328232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23251684 + 30625 = 4822^2 + 175^2 .

It is a cyclic number.

It is not a de Polignac number, because 23282309 - 2²⁰ = 22233733 is a prime.

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 (23287309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11641154 + 11641155.

It is an arithmetic number, because the mean of its divisors is an integer number (11641155).

Almost surely, 2^23282309 is an apocalyptic number.

It is an amenable number.

23282309 is a deficient number, since it is larger than the sum of its proper divisors (1).

23282309 is an equidigital number, since it uses as much as digits as its factorization.

23282309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 23282309 is about 4825.1745046164. The cubic root of 23282309 is about 285.5455192250.

The spelling of 23282309 in words is "twenty-three million, two hundred eighty-two thousand, three hundred nine".