34310209 has 2 divisors, whose sum is σ = 34310210. Its totient is φ = 34310208.

The previous prime is 34310207. The next prime is 34310249. The reversal of 34310209 is 90201343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28890625 + 5419584 = 5375^2 + 2328^2 .

It is an emirp because it is prime and its reverse (90201343) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34310209 - 2¹ = 34310207 is a prime.

Together with 34310207, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 34310209.

It is not a weakly prime, because it can be changed into another prime (34310201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17155104 + 17155105.

It is an arithmetic number, because the mean of its divisors is an integer number (17155105).

Almost surely, 2^34310209 is an apocalyptic number.

It is an amenable number.

34310209 is a deficient number, since it is larger than the sum of its proper divisors (1).

34310209 is an equidigital number, since it uses as much as digits as its factorization.

34310209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 34310209 is about 5857.4916986710. The cubic root of 34310209 is about 324.9434505161.

The spelling of 34310209 in words is "thirty-four million, three hundred ten thousand, two hundred nine".