34543409 has 2 divisors, whose sum is σ = 34543410. Its totient is φ = 34543408.

The previous prime is 34543403. The next prime is 34543427. The reversal of 34543409 is 90434543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30217009 + 4326400 = 5497^2 + 2080^2 .

It is a cyclic number.

It is not a de Polignac number, because 34543409 - 2²⁰ = 33494833 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (34543403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17271704 + 17271705.

It is an arithmetic number, because the mean of its divisors is an integer number (17271705).

Almost surely, 2^34543409 is an apocalyptic number.

It is an amenable number.

34543409 is a deficient number, since it is larger than the sum of its proper divisors (1).

34543409 is an equidigital number, since it uses as much as digits as its factorization.

34543409 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 32.

The square root of 34543409 is about 5877.3641200797. The cubic root of 34543409 is about 325.6779819183.

The spelling of 34543409 in words is "thirty-four million, five hundred forty-three thousand, four hundred nine".