34289809 has 2 divisors, whose sum is σ = 34289810. Its totient is φ = 34289808.

The previous prime is 34289753. The next prime is 34289819. The reversal of 34289809 is 90898243.

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., 34187409 + 102400 = 5847^2 + 320^2 .

It is an emirp because it is prime and its reverse (90898243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34289809 - 2²³ = 25901201 is a prime.

It is not a weakly prime, because it can be changed into another prime (34289819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17144904 + 17144905.

It is an arithmetic number, because the mean of its divisors is an integer number (17144905).

Almost surely, 2^34289809 is an apocalyptic number.

It is an amenable number.

34289809 is a deficient number, since it is larger than the sum of its proper divisors (1).

34289809 is an equidigital number, since it uses as much as digits as its factorization.

34289809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 34289809 is about 5855.7500800495. The cubic root of 34289809 is about 324.8790366404.

The spelling of 34289809 in words is "thirty-four million, two hundred eighty-nine thousand, eight hundred nine".