648313 has 8 divisors (see below), whose sum is σ = 671328. Its totient is φ = 625824.

The previous prime is 648293. The next prime is 648317. The reversal of 648313 is 313846.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 648313 - 2¹³ = 640121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (648317) 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 in 7 ways as a sum of consecutive naturals, for example, 6006 + ... + 6112.

It is an arithmetic number, because the mean of its divisors is an integer number (83916).

2⁶⁴⁸³¹³ is an apocalyptic number.

It is an amenable number.

648313 is a deficient number, since it is larger than the sum of its proper divisors (23015).

648313 is a wasteful number, since it uses less digits than its factorization.

648313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263.

The product of its digits is 1728, while the sum is 25.

The square root of 648313 is about 805.1788621170. The cubic root of 648313 is about 86.5489048188.

It can be divided in two parts, 648 and 313, that added together give a square (961 = 31²).

The spelling of 648313 in words is "six hundred forty-eight thousand, three hundred thirteen".