348421 has 2 divisors, whose sum is σ = 348422. Its totient is φ = 348420.
The previous prime is 348419. The next prime is 348431. The reversal of 348421 is 124843.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 236196 + 112225 = 486^2 + 335^2 .
It is a cyclic number.
It is not a de Polignac number, because 348421 - 21 = 348419 is a prime.
Together with 348419, it forms a pair of twin primes.
It is a Chen prime.
348421 is a lucky number.
It is a junction number, because it is equal to n+sod(n) for n = 348392 and 348401.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (348401) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174210 + 174211.
It is an arithmetic number, because the mean of its divisors is an integer number (174211).
2348421 is an apocalyptic number.
It is an amenable number.
348421 is a deficient number, since it is larger than the sum of its proper divisors (1).
348421 is an equidigital number, since it uses as much as digits as its factorization.
348421 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 768, while the sum is 22.
The square root of 348421 is about 590.2719712133. The cubic root of 348421 is about 70.3668495999.
It can be divided in two parts, 34842 and 1, that added together give a palindrome (34843).
The spelling of 348421 in words is "three hundred forty-eight thousand, four hundred twenty-one".
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