681273 has 12 divisors (see below), whose sum is σ = 1001520. Its totient is φ = 446136.

The previous prime is 681271. The next prime is 681293. The reversal of 681273 is 372186.

681273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 681273 - 2¹ = 681271 is a prime.

It is a d-powerful number, because it can be written as 6 + 8⁵ + 2¹⁹ + 1 + 7⁶ + 3⁸ .

It is not an unprimeable number, because it can be changed into a prime (681271) 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, 111 + ... + 1172.

It is an arithmetic number, because the mean of its divisors is an integer number (83460).

2⁶⁸¹²⁷³ is an apocalyptic number.

It is an amenable number.

681273 is a deficient number, since it is larger than the sum of its proper divisors (320247).

681273 is a wasteful number, since it uses less digits than its factorization.

681273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348 (or 1345 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 681273 is about 825.3926338416. The cubic root of 681273 is about 87.9914333947.

The spelling of 681273 in words is "six hundred eighty-one thousand, two hundred seventy-three".