681848 has 16 divisors (see below), whose sum is σ = 1323000. Its totient is φ = 329056.

The previous prime is 681841. The next prime is 681883. The reversal of 681848 is 848186.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681841) 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, 1238 + ... + 1701.

2⁶⁸¹⁸⁴⁸ is an apocalyptic number.

It is an amenable number.

681848 is a deficient number, since it is larger than the sum of its proper divisors (641152).

681848 is a wasteful number, since it uses less digits than its factorization.

681848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2974 (or 2970 counting only the distinct ones).

The product of its digits is 12288, while the sum is 35.

The square root of 681848 is about 825.7408794531. The cubic root of 681848 is about 88.0161815973.

The spelling of 681848 in words is "six hundred eighty-one thousand, eight hundred forty-eight".