684848 has 20 divisors (see below), whose sum is σ = 1385328. Its totient is φ = 327360.

The previous prime is 684841. The next prime is 684857. The reversal of 684848 is 848486.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (684841) by changing a digit.

684848 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 563 + ... + 1298.

2⁶⁸⁴⁸⁴⁸ is an apocalyptic number.

It is an amenable number.

684848 is an abundant number, since it is smaller than the sum of its proper divisors (700480).

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

684848 is a wasteful number, since it uses less digits than its factorization.

684848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892 (or 1886 counting only the distinct ones).

The product of its digits is 49152, while the sum is 38.

The square root of 684848 is about 827.5554362096. Note that the first 3 decimals coincide. The cubic root of 684848 is about 88.1450774971.

The spelling of 684848 in words is "six hundred eighty-four thousand, eight hundred forty-eight".