29947529 has 2 divisors, whose sum is σ = 29947530. Its totient is φ = 29947528.

The previous prime is 29947513. The next prime is 29947531. The reversal of 29947529 is 92574992.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18079504 + 11868025 = 4252^2 + 3445^2 .

It is a cyclic number.

It is not a de Polignac number, because 29947529 - 2⁴ = 29947513 is a prime.

Together with 29947531, 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 (29947129) 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, 14973764 + 14973765.

It is an arithmetic number, because the mean of its divisors is an integer number (14973765).

Almost surely, 2^29947529 is an apocalyptic number.

It is an amenable number.

29947529 is a deficient number, since it is larger than the sum of its proper divisors (1).

29947529 is an equidigital number, since it uses as much as digits as its factorization.

29947529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 47.

The square root of 29947529 is about 5472.4335537309. The cubic root of 29947529 is about 310.5419897696.

The spelling of 29947529 in words is "twenty-nine million, nine hundred forty-seven thousand, five hundred twenty-nine".