648573 has 8 divisors (see below), whose sum is σ = 888288. Its totient is φ = 420624.

The previous prime is 648563. The next prime is 648607. The reversal of 648573 is 375846.

648573 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 648573 - 2⁶ = 648509 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

648573 is strictly pandigital in base 7.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2811 + ... + 3032.

It is an arithmetic number, because the mean of its divisors is an integer number (111036).

2⁶⁴⁸⁵⁷³ is an apocalyptic number.

It is an amenable number.

648573 is a deficient number, since it is larger than the sum of its proper divisors (239715).

648573 is a wasteful number, since it uses less digits than its factorization.

648573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5883.

The product of its digits is 20160, while the sum is 33.

The square root of 648573 is about 805.3403007425. The cubic root of 648573 is about 86.5604731548.

It can be divided in two parts, 648 and 573, that added together give a palindrome (1221).

The spelling of 648573 in words is "six hundred forty-eight thousand, five hundred seventy-three".