681027 has 8 divisors (see below), whose sum is σ = 915216. Its totient is φ = 450432.

The previous prime is 681019. The next prime is 681041. The reversal of 681027 is 720186.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 681027 - 2³ = 681019 is a prime.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 680988 and 681006.

It is not an unprimeable number, because it can be changed into a prime (681047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 418 + ... + 1239.

It is an arithmetic number, because the mean of its divisors is an integer number (114402).

2⁶⁸¹⁰²⁷ is an apocalyptic number.

681027 is a deficient number, since it is larger than the sum of its proper divisors (234189).

681027 is a wasteful number, since it uses less digits than its factorization.

681027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 681027 is about 825.2436003993. The cubic root of 681027 is about 87.9808412149.

The spelling of 681027 in words is "six hundred eighty-one thousand, twenty-seven".