34221329 has 2 divisors, whose sum is σ = 34221330. Its totient is φ = 34221328.

The previous prime is 34221287. The next prime is 34221331. The reversal of 34221329 is 92312243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30780304 + 3441025 = 5548^2 + 1855^2 .

It is an emirp because it is prime and its reverse (92312243) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34221329 is a prime.

It is a Sophie Germain prime.

Together with 34221331, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 34221298 and 34221307.

It is not a weakly prime, because it can be changed into another prime (34221359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17110664 + 17110665.

It is an arithmetic number, because the mean of its divisors is an integer number (17110665).

Almost surely, 2^34221329 is an apocalyptic number.

It is an amenable number.

34221329 is a deficient number, since it is larger than the sum of its proper divisors (1).

34221329 is an equidigital number, since it uses as much as digits as its factorization.

34221329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 26.

The square root of 34221329 is about 5849.8999136737. The cubic root of 34221329 is about 324.6626210950.

The spelling of 34221329 in words is "thirty-four million, two hundred twenty-one thousand, three hundred twenty-nine".