29968709 has 2 divisors, whose sum is σ = 29968710. Its totient is φ = 29968708.

The previous prime is 29968669. The next prime is 29968711. The reversal of 29968709 is 90786992.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20340100 + 9628609 = 4510^2 + 3103^2 .

It is a cyclic number.

It is not a de Polignac number, because 29968709 - 2¹⁶ = 29903173 is a prime.

Together with 29968711, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29968009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14984354 + 14984355.

It is an arithmetic number, because the mean of its divisors is an integer number (14984355).

Almost surely, 2^29968709 is an apocalyptic number.

It is an amenable number.

29968709 is a deficient number, since it is larger than the sum of its proper divisors (1).

29968709 is an equidigital number, since it uses as much as digits as its factorization.

29968709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 29968709 is about 5474.3683653916. The cubic root of 29968709 is about 310.6151814442.

The spelling of 29968709 in words is "twenty-nine million, nine hundred sixty-eight thousand, seven hundred nine".