648293 has 2 divisors, whose sum is σ = 648294. Its totient is φ = 648292.

The previous prime is 648289. The next prime is 648317. The reversal of 648293 is 392846.

648293 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., 452929 + 195364 = 673^2 + 442^2 .

It is a cyclic number.

It is not a de Polignac number, because 648293 - 2² = 648289 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (648283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324146 + 324147.

It is an arithmetic number, because the mean of its divisors is an integer number (324147).

2⁶⁴⁸²⁹³ is an apocalyptic number.

It is an amenable number.

648293 is a deficient number, since it is larger than the sum of its proper divisors (1).

648293 is an equidigital number, since it uses as much as digits as its factorization.

648293 is an evil number, because the sum of its binary digits is even.

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

The square root of 648293 is about 805.1664424204. The cubic root of 648293 is about 86.5480148187.

The spelling of 648293 in words is "six hundred forty-eight thousand, two hundred ninety-three".