34839221 has 2 divisors, whose sum is σ = 34839222. Its totient is φ = 34839220.

The previous prime is 34839209. The next prime is 34839241. The reversal of 34839221 is 12293843.

It is a happy number.

34839221 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., 32547025 + 2292196 = 5705^2 + 1514^2 .

It is a cyclic number.

It is not a de Polignac number, because 34839221 - 2⁶ = 34839157 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34839241) 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, 17419610 + 17419611.

It is an arithmetic number, because the mean of its divisors is an integer number (17419611).

Almost surely, 2^34839221 is an apocalyptic number.

It is an amenable number.

34839221 is a deficient number, since it is larger than the sum of its proper divisors (1).

34839221 is an equidigital number, since it uses as much as digits as its factorization.

34839221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 34839221 is about 5902.4758364605. The cubic root of 34839221 is about 326.6049870821.

The spelling of 34839221 in words is "thirty-four million, eight hundred thirty-nine thousand, two hundred twenty-one".