681327 has 6 divisors (see below), whose sum is σ = 984152. Its totient is φ = 454212.

The previous prime is 681311. The next prime is 681337. The reversal of 681327 is 723186.

It is not a de Polignac number, because 681327 - 2⁴ = 681311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 681327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681337) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37843 + ... + 37860.

2⁶⁸¹³²⁷ is an apocalyptic number.

681327 is a deficient number, since it is larger than the sum of its proper divisors (302825).

681327 is a wasteful number, since it uses less digits than its factorization.

681327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75709 (or 75706 counting only the distinct ones).

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

The square root of 681327 is about 825.4253448980. The cubic root of 681327 is about 87.9937581661.

The spelling of 681327 in words is "six hundred eighty-one thousand, three hundred twenty-seven".