34568221 has 2 divisors, whose sum is σ = 34568222. Its totient is φ = 34568220.

The previous prime is 34568197. The next prime is 34568263. The reversal of 34568221 is 12286543.

34568221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33802596 + 765625 = 5814^2 + 875^2 .

It is an emirp because it is prime and its reverse (12286543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34568221 - 2¹⁵ = 34535453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34568291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17284110 + 17284111.

It is an arithmetic number, because the mean of its divisors is an integer number (17284111).

Almost surely, 2^34568221 is an apocalyptic number.

It is an amenable number.

34568221 is a deficient number, since it is larger than the sum of its proper divisors (1).

34568221 is an equidigital number, since it uses as much as digits as its factorization.

34568221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 31.

The square root of 34568221 is about 5879.4745513524. The cubic root of 34568221 is about 325.7559397530.

The spelling of 34568221 in words is "thirty-four million, five hundred sixty-eight thousand, two hundred twenty-one".