34568209 has 4 divisors (see below), whose sum is σ = 37227316. Its totient is φ = 31909104.

The previous prime is 34568197. The next prime is 34568221. The reversal of 34568209 is 90286543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90286543 = 3361 ⋅26863.

It is an interprime number because it is at equal distance from previous prime (34568197) and next prime (34568221).

It can be written as a sum of positive squares in 2 ways, for example, as 20729809 + 13838400 = 4553^2 + 3720^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34568209 is a prime.

It is a super-2 number, since 2×34568209² = 2389922146935362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34568269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1329534 + ... + 1329559.

It is an arithmetic number, because the mean of its divisors is an integer number (9306829).

Almost surely, 2^34568209 is an apocalyptic number.

It is an amenable number.

34568209 is a deficient number, since it is larger than the sum of its proper divisors (2659107).

34568209 is a wasteful number, since it uses less digits than its factorization.

34568209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2659106.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 34568209 is about 5879.4735308529. The cubic root of 34568209 is about 325.7559020587.

The spelling of 34568209 in words is "thirty-four million, five hundred sixty-eight thousand, two hundred nine".