648259 has 2 divisors, whose sum is σ = 648260. Its totient is φ = 648258.

The previous prime is 648257. The next prime is 648269. The reversal of 648259 is 952846.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 648259 - 2¹ = 648257 is a prime.

Together with 648257, it forms a pair of twin primes.

648259 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (648257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324129 + 324130.

It is an arithmetic number, because the mean of its divisors is an integer number (324130).

2⁶⁴⁸²⁵⁹ is an apocalyptic number.

648259 is a deficient number, since it is larger than the sum of its proper divisors (1).

648259 is an equidigital number, since it uses as much as digits as its factorization.

648259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 34.

The square root of 648259 is about 805.1453284967. The cubic root of 648259 is about 86.5465017765.

The spelling of 648259 in words is "six hundred forty-eight thousand, two hundred fifty-nine".