648365 has 16 divisors (see below), whose sum is σ = 829440. Its totient is φ = 485760.

The previous prime is 648343. The next prime is 648371. The reversal of 648365 is 563846.

It is not a de Polignac number, because 648365 - 2¹⁰ = 647341 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 648365.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7241 + ... + 7329.

It is an arithmetic number, because the mean of its divisors is an integer number (51840).

2⁶⁴⁸³⁶⁵ is an apocalyptic number.

It is an amenable number.

648365 is a deficient number, since it is larger than the sum of its proper divisors (181075).

648365 is a wasteful number, since it uses less digits than its factorization.

648365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172.

The product of its digits is 17280, while the sum is 32.

The square root of 648365 is about 805.2111524315. The cubic root of 648365 is about 86.5512187334.

The spelling of 648365 in words is "six hundred forty-eight thousand, three hundred sixty-five".