648085 has 8 divisors (see below), whose sum is σ = 782496. Its totient is φ = 515280.

The previous prime is 648079. The next prime is 648097. The reversal of 648085 is 580846.

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

It is a de Polignac number, because none of the positive numbers 2^k-648085 is a prime.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 850 + ... + 1420.

It is an arithmetic number, because the mean of its divisors is an integer number (97812).

2⁶⁴⁸⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

648085 is a deficient number, since it is larger than the sum of its proper divisors (134411).

648085 is a wasteful number, since it uses less digits than its factorization.

648085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 648085 is about 805.0372662182. The cubic root of 648085 is about 86.5387577324.

The spelling of 648085 in words is "six hundred forty-eight thousand, eighty-five".