680403 has 8 divisors (see below), whose sum is σ = 911248. Its totient is φ = 451584.

The previous prime is 680401. The next prime is 680411. The reversal of 680403 is 304086.

680403 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 680403 - 2¹ = 680401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 680403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680401) 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, 675 + ... + 1347.

It is an arithmetic number, because the mean of its divisors is an integer number (113906).

2⁶⁸⁰⁴⁰³ is an apocalyptic number.

680403 is a deficient number, since it is larger than the sum of its proper divisors (230845).

680403 is a wasteful number, since it uses less digits than its factorization.

680403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 680403 is about 824.8654435725. The cubic root of 680403 is about 87.9539618003.

Adding to 680403 its reverse (304086), we get a palindrome (984489).

The spelling of 680403 in words is "six hundred eighty thousand, four hundred three".