681035 has 4 divisors (see below), whose sum is σ = 817248. Its totient is φ = 544824.

The previous prime is 681019. The next prime is 681041. The reversal of 681035 is 530186.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 530186 = 2 ⋅265093.

It is a cyclic number.

It is not a de Polignac number, because 681035 - 2⁴ = 681019 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 681035.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 681035.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68099 + ... + 68108.

It is an arithmetic number, because the mean of its divisors is an integer number (204312).

2⁶⁸¹⁰³⁵ is an apocalyptic number.

681035 is a deficient number, since it is larger than the sum of its proper divisors (136213).

681035 is a wasteful number, since it uses less digits than its factorization.

681035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136212.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 681035 is about 825.2484474387. The cubic root of 681035 is about 87.9811857161.

The spelling of 681035 in words is "six hundred eighty-one thousand, thirty-five".