34205389 has 2 divisors, whose sum is σ = 34205390. Its totient is φ = 34205388.

The previous prime is 34205363. The next prime is 34205407. The reversal of 34205389 is 98350243.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28836900 + 5368489 = 5370^2 + 2317^2 .

It is an emirp because it is prime and its reverse (98350243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34205389 - 2⁷ = 34205261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34205089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17102694 + 17102695.

It is an arithmetic number, because the mean of its divisors is an integer number (17102695).

Almost surely, 2^34205389 is an apocalyptic number.

It is an amenable number.

34205389 is a deficient number, since it is larger than the sum of its proper divisors (1).

34205389 is an equidigital number, since it uses as much as digits as its factorization.

34205389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 34205389 is about 5848.5373385146. The cubic root of 34205389 is about 324.6122049165.

The spelling of 34205389 in words is "thirty-four million, two hundred five thousand, three hundred eighty-nine".