23680309 has 2 divisors, whose sum is σ = 23680310. Its totient is φ = 23680308.

The previous prime is 23680301. The next prime is 23680351. The reversal of 23680309 is 90308632.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18404100 + 5276209 = 4290^2 + 2297^2 .

It is a cyclic number.

It is not a de Polignac number, because 23680309 - 2³ = 23680301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23680301) 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, 11840154 + 11840155.

It is an arithmetic number, because the mean of its divisors is an integer number (11840155).

Almost surely, 2^23680309 is an apocalyptic number.

It is an amenable number.

23680309 is a deficient number, since it is larger than the sum of its proper divisors (1).

23680309 is an equidigital number, since it uses as much as digits as its factorization.

23680309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 23680309 is about 4866.2417736894. The cubic root of 23680309 is about 287.1634231357.

The spelling of 23680309 in words is "twenty-three million, six hundred eighty thousand, three hundred nine".