681746795 has 16 divisors (see below), whose sum is σ = 860405760. Its totient is φ = 517565664.

The previous prime is 681746789. The next prime is 681746839. The reversal of 681746795 is 597647186.

It is a cyclic number.

It is not a de Polignac number, because 681746795 - 2⁶ = 681746731 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8735 + ... + 37944.

It is an arithmetic number, because the mean of its divisors is an integer number (53775360).

Almost surely, 2^681746795 is an apocalyptic number.

681746795 is a deficient number, since it is larger than the sum of its proper divisors (178658965).

681746795 is a wasteful number, since it uses less digits than its factorization.

681746795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46834.

The product of its digits is 2540160, while the sum is 53.

The square root of 681746795 is about 26110.2814040753. The cubic root of 681746795 is about 880.1182670766.

The spelling of 681746795 in words is "six hundred eighty-one million, seven hundred forty-six thousand, seven hundred ninety-five".