648562 has 8 divisors (see below), whose sum is σ = 984816. Its totient is φ = 320292.

The previous prime is 648509. The next prime is 648563. The reversal of 648562 is 265846.

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

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1788 + ... + 2119.

It is an arithmetic number, because the mean of its divisors is an integer number (123102).

2⁶⁴⁸⁵⁶² is an apocalyptic number.

648562 is a deficient number, since it is larger than the sum of its proper divisors (336254).

648562 is a wasteful number, since it uses less digits than its factorization.

648562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3992.

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

The square root of 648562 is about 805.3334713024. Note that the first 3 decimals coincide. The cubic root of 648562 is about 86.5599837878.

The spelling of 648562 in words is "six hundred forty-eight thousand, five hundred sixty-two".