23307239 has 2 divisors, whose sum is σ = 23307240. Its totient is φ = 23307238.

The previous prime is 23307233. The next prime is 23307269. The reversal of 23307239 is 93270332.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23307239 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23307233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11653619 + 11653620.

It is an arithmetic number, because the mean of its divisors is an integer number (11653620).

Almost surely, 2^23307239 is an apocalyptic number.

23307239 is a deficient number, since it is larger than the sum of its proper divisors (1).

23307239 is an equidigital number, since it uses as much as digits as its factorization.

23307239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 29.

The square root of 23307239 is about 4827.7571397078. The cubic root of 23307239 is about 285.6474007365.

The spelling of 23307239 in words is "twenty-three million, three hundred seven thousand, two hundred thirty-nine".