23232289 has 2 divisors, whose sum is σ = 23232290. Its totient is φ = 23232288.

The previous prime is 23232283. The next prime is 23232311. The reversal of 23232289 is 98223232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19070689 + 4161600 = 4367^2 + 2040^2 .

It is a cyclic number.

It is not a de Polignac number, because 23232289 - 2⁵ = 23232257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23232289.

It is not a weakly prime, because it can be changed into another prime (23232283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11616144 + 11616145.

It is an arithmetic number, because the mean of its divisors is an integer number (11616145).

Almost surely, 2^23232289 is an apocalyptic number.

It is an amenable number.

23232289 is a deficient number, since it is larger than the sum of its proper divisors (1).

23232289 is an equidigital number, since it uses as much as digits as its factorization.

23232289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 31.

The square root of 23232289 is about 4819.9884854634. The cubic root of 23232289 is about 285.3408827680.

The spelling of 23232289 in words is "twenty-three million, two hundred thirty-two thousand, two hundred eighty-nine".