348221 has 2 divisors, whose sum is σ = 348222. Its totient is φ = 348220.

The previous prime is 348217. The next prime is 348239. The reversal of 348221 is 122843.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 348100 + 121 = 590^2 + 11^2 .

It is a cyclic number.

It is not a de Polignac number, because 348221 - 2² = 348217 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 348193 and 348202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (348241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174110 + 174111.

It is an arithmetic number, because the mean of its divisors is an integer number (174111).

2³⁴⁸²²¹ is an apocalyptic number.

It is an amenable number.

348221 is a deficient number, since it is larger than the sum of its proper divisors (1).

348221 is an equidigital number, since it uses as much as digits as its factorization.

348221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 20.

The square root of 348221 is about 590.1025334635. The cubic root of 348221 is about 70.3533830717.

The spelling of 348221 in words is "three hundred forty-eight thousand, two hundred twenty-one".