683555 has 4 divisors (see below), whose sum is σ = 820272. Its totient is φ = 546840.

The previous prime is 683513. The next prime is 683567. The reversal of 683555 is 555386.

683555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 683555 - 2⁸ = 683299 is a prime.

It is a Duffinian number.

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, 68351 + ... + 68360.

It is an arithmetic number, because the mean of its divisors is an integer number (205068).

2⁶⁸³⁵⁵⁵ is an apocalyptic number.

683555 is a deficient number, since it is larger than the sum of its proper divisors (136717).

683555 is a wasteful number, since it uses less digits than its factorization.

683555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136716.

The product of its digits is 18000, while the sum is 32.

The square root of 683555 is about 826.7738505783. The cubic root of 683555 is about 88.0895696145.

The spelling of 683555 in words is "six hundred eighty-three thousand, five hundred fifty-five".