681296 has 60 divisors (see below), whose sum is σ = 1696320. Its totient is φ = 262080.

The previous prime is 681293. The next prime is 681311. The reversal of 681296 is 692186.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681293) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8585 + ... + 8663.

It is an arithmetic number, because the mean of its divisors is an integer number (28272).

2⁶⁸¹²⁹⁶ 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 681296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (848160).

681296 is an abundant number, since it is smaller than the sum of its proper divisors (1015024).

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

681296 is a wasteful number, since it uses less digits than its factorization.

681296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 99 counting only the distinct ones).

The product of its digits is 5184, while the sum is 32.

The square root of 681296 is about 825.4065664871. The cubic root of 681296 is about 87.9924235901.

The spelling of 681296 in words is "six hundred eighty-one thousand, two hundred ninety-six".