648834 has 8 divisors (see below), whose sum is σ = 1297680. Its totient is φ = 216276.

The previous prime is 648803. The next prime is 648841. The reversal of 648834 is 438846.

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

648834 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 648795 and 648804.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 648834.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54064 + ... + 54075.

It is an arithmetic number, because the mean of its divisors is an integer number (162210).

2⁶⁴⁸⁸³⁴ is an apocalyptic number.

648834 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

648834 is a wasteful number, since it uses less digits than its factorization.

648834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108144.

The product of its digits is 18432, while the sum is 33.

The square root of 648834 is about 805.5023277434. The cubic root of 648834 is about 86.5720828752.

The spelling of 648834 in words is "six hundred forty-eight thousand, eight hundred thirty-four".