348196421 has 2 divisors, whose sum is σ = 348196422. Its totient is φ = 348196420.

The previous prime is 348196399. The next prime is 348196423. The reversal of 348196421 is 124691843.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 339112225 + 9084196 = 18415^2 + 3014^2 .

It is a cyclic number.

It is not a de Polignac number, because 348196421 - 2¹⁴ = 348180037 is a prime.

Together with 348196423, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_18711677 and since 348196421 and 18711677 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (348196423) 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 as a sum of consecutive naturals, namely, 174098210 + 174098211.

It is an arithmetic number, because the mean of its divisors is an integer number (174098211).

Almost surely, 2^348196421 is an apocalyptic number.

It is an amenable number.

348196421 is a deficient number, since it is larger than the sum of its proper divisors (1).

348196421 is an equidigital number, since it uses as much as digits as its factorization.

348196421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 38.

The square root of 348196421 is about 18660.0219989152. The cubic root of 348196421 is about 703.5172774702.

The spelling of 348196421 in words is "three hundred forty-eight million, one hundred ninety-six thousand, four hundred twenty-one".