681096 has 64 divisors (see below), whose sum is σ = 1915200. Its totient is φ = 200448.

The previous prime is 681091. The next prime is 681113. The reversal of 681096 is 690186.

It is a super-2 number, since 2×681096² = 927783522432, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (681091) by changing a digit.

681096 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11515 + ... + 11573.

It is an arithmetic number, because the mean of its divisors is an integer number (29925).

2⁶⁸¹⁰⁹⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 681096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (957600).

681096 is an abundant number, since it is smaller than the sum of its proper divisors (1234104).

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

681096 is a wasteful number, since it uses less digits than its factorization.

681096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 681096 is about 825.2854051781. The cubic root of 681096 is about 87.9838124495.

The spelling of 681096 in words is "six hundred eighty-one thousand, ninety-six".