648359 has 4 divisors (see below), whose sum is σ = 658104. Its totient is φ = 638616.

The previous prime is 648343. The next prime is 648371. The reversal of 648359 is 953846.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 648359 - 2⁴ = 648343 is a prime.

It is a Duffinian number.

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 648359.

It is not an unprimeable number, because it can be changed into a prime (648379) 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 3 ways as a sum of consecutive naturals, for example, 4772 + ... + 4905.

It is an arithmetic number, because the mean of its divisors is an integer number (164526).

2⁶⁴⁸³⁵⁹ is an apocalyptic number.

648359 is a deficient number, since it is larger than the sum of its proper divisors (9745).

648359 is an equidigital number, since it uses as much as digits as its factorization.

648359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9744.

The product of its digits is 25920, while the sum is 35.

The square root of 648359 is about 805.2074266920. The cubic root of 648359 is about 86.5509517496.

The spelling of 648359 in words is "six hundred forty-eight thousand, three hundred fifty-nine".