648265 has 8 divisors (see below), whose sum is σ = 782280. Its totient is φ = 515712.

The previous prime is 648259. The next prime is 648269. The reversal of 648265 is 562846.

It can be written as a sum of positive squares in 4 ways, for example, as 53824 + 594441 = 232^2 + 771^2 .

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 648265 - 2³ = 648257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1381 + ... + 1789.

It is an arithmetic number, because the mean of its divisors is an integer number (97785).

2⁶⁴⁸²⁶⁵ is an apocalyptic number.

It is an amenable number.

648265 is a deficient number, since it is larger than the sum of its proper divisors (134015).

648265 is a wasteful number, since it uses less digits than its factorization.

648265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731.

The product of its digits is 11520, while the sum is 31.

The square root of 648265 is about 805.1490545234. The cubic root of 648265 is about 86.5467687878.

The spelling of 648265 in words is "six hundred forty-eight thousand, two hundred sixty-five".