681795 has 24 divisors (see below), whose sum is σ = 1201200. Its totient is φ = 357696.

The previous prime is 681787. The next prime is 681809. The reversal of 681795 is 597186.

681795 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 681795 - 2³ = 681787 is a prime.

681795 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4836 + ... + 4974.

It is an arithmetic number, because the mean of its divisors is an integer number (50050).

2⁶⁸¹⁷⁹⁵ is an apocalyptic number.

681795 is a deficient number, since it is larger than the sum of its proper divisors (519405).

681795 is a wasteful number, since it uses less digits than its factorization.

681795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259 (or 256 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 681795 is about 825.7087864374. The cubic root of 681795 is about 88.0139010409.

The spelling of 681795 in words is "six hundred eighty-one thousand, seven hundred ninety-five".