34442809 has 2 divisors, whose sum is σ = 34442810. Its totient is φ = 34442808.

The previous prime is 34442797. The next prime is 34442813. The reversal of 34442809 is 90824443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34164025 + 278784 = 5845^2 + 528^2 .

It is an emirp because it is prime and its reverse (90824443) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34442809 - 2⁵ = 34442777 is a prime.

It is not a weakly prime, because it can be changed into another prime (34442879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17221404 + 17221405.

It is an arithmetic number, because the mean of its divisors is an integer number (17221405).

Almost surely, 2^34442809 is an apocalyptic number.

It is an amenable number.

34442809 is a deficient number, since it is larger than the sum of its proper divisors (1).

34442809 is an equidigital number, since it uses as much as digits as its factorization.

34442809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 34442809 is about 5868.7996217285. The cubic root of 34442809 is about 325.3615196015.

The spelling of 34442809 in words is "thirty-four million, four hundred forty-two thousand, eight hundred nine".