683755 has 4 divisors (see below), whose sum is σ = 820512. Its totient is φ = 547000.

The previous prime is 683747. The next prime is 683759. The reversal of 683755 is 557386.

It is a happy number.

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

It is not a de Polignac number, because 683755 - 2³ = 683747 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 683755.

It is not an unprimeable number, because it can be changed into a prime (683759) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 68371 + ... + 68380.

It is an arithmetic number, because the mean of its divisors is an integer number (205128).

2⁶⁸³⁷⁵⁵ is an apocalyptic number.

683755 is a deficient number, since it is larger than the sum of its proper divisors (136757).

683755 is a wasteful number, since it uses less digits than its factorization.

683755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136756.

The product of its digits is 25200, while the sum is 34.

The square root of 683755 is about 826.8947937918. The cubic root of 683755 is about 88.0981600942.

The spelling of 683755 in words is "six hundred eighty-three thousand, seven hundred fifty-five".