29709089 has 2 divisors, whose sum is σ = 29709090. Its totient is φ = 29709088.

The previous prime is 29709083. The next prime is 29709091. The reversal of 29709089 is 98090792.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19360000 + 10349089 = 4400^2 + 3217^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29709089 is a prime.

Together with 29709091, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (29709083) 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, 14854544 + 14854545.

It is an arithmetic number, because the mean of its divisors is an integer number (14854545).

Almost surely, 2^29709089 is an apocalyptic number.

It is an amenable number.

29709089 is a deficient number, since it is larger than the sum of its proper divisors (1).

29709089 is an equidigital number, since it uses as much as digits as its factorization.

29709089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 29709089 is about 5450.6044618923. The cubic root of 29709089 is about 309.7156219670.

The spelling of 29709089 in words is "twenty-nine million, seven hundred nine thousand, eighty-nine".