648341 has 2 divisors, whose sum is σ = 648342. Its totient is φ = 648340.

The previous prime is 648331. The next prime is 648343. The reversal of 648341 is 143846.

648341 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 442225 + 206116 = 665^2 + 454^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-648341 is a prime.

Together with 648343, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 648341.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (648343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324170 + 324171.

It is an arithmetic number, because the mean of its divisors is an integer number (324171).

2⁶⁴⁸³⁴¹ is an apocalyptic number.

It is an amenable number.

648341 is a deficient number, since it is larger than the sum of its proper divisors (1).

648341 is an equidigital number, since it uses as much as digits as its factorization.

648341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 26.

The square root of 648341 is about 805.1962493703. The cubic root of 648341 is about 86.5501507882.

It can be divided in two parts, 648 and 341, that added together give a palindrome (989).

The spelling of 648341 in words is "six hundred forty-eight thousand, three hundred forty-one".