34320509 has 2 divisors, whose sum is σ = 34320510. Its totient is φ = 34320508.

The previous prime is 34320487. The next prime is 34320541. The reversal of 34320509 is 90502343.

34320509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25452025 + 8868484 = 5045^2 + 2978^2 .

It is a cyclic number.

It is not a de Polignac number, because 34320509 - 2¹⁶ = 34254973 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34320589) 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, 17160254 + 17160255.

It is an arithmetic number, because the mean of its divisors is an integer number (17160255).

Almost surely, 2^34320509 is an apocalyptic number.

It is an amenable number.

34320509 is a deficient number, since it is larger than the sum of its proper divisors (1).

34320509 is an equidigital number, since it uses as much as digits as its factorization.

34320509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 34320509 is about 5858.3708486234. The cubic root of 34320509 is about 324.9759635083.

The spelling of 34320509 in words is "thirty-four million, three hundred twenty thousand, five hundred nine".