680395 has 8 divisors (see below), whose sum is σ = 836640. Its totient is φ = 530880.

The previous prime is 680387. The next prime is 680399. The reversal of 680395 is 593086.

680395 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 not a de Polignac number, because 680395 - 2³ = 680387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (680399) 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, 1455 + ... + 1864.

It is an arithmetic number, because the mean of its divisors is an integer number (104580).

2⁶⁸⁰³⁹⁵ is an apocalyptic number.

680395 is a deficient number, since it is larger than the sum of its proper divisors (156245).

680395 is a wasteful number, since it uses less digits than its factorization.

680395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3365.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 680395 is about 824.8605942825. The cubic root of 680395 is about 87.9536170858.

The spelling of 680395 in words is "six hundred eighty thousand, three hundred ninety-five".