681007 has 8 divisors (see below), whose sum is σ = 735840. Its totient is φ = 628320.

The previous prime is 681001. The next prime is 681011. The reversal of 681007 is 700186.

681007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 681007 - 2⁷ = 680879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681001) 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, 157 + ... + 1177.

It is an arithmetic number, because the mean of its divisors is an integer number (91980).

2⁶⁸¹⁰⁰⁷ is an apocalyptic number.

681007 is a deficient number, since it is larger than the sum of its proper divisors (54833).

681007 is a wasteful number, since it uses less digits than its factorization.

681007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 681007 is about 825.2314826762. The cubic root of 681007 is about 87.9799799499.

The spelling of 681007 in words is "six hundred eighty-one thousand, seven".