683563 has 4 divisors (see below), whose sum is σ = 719560. Its totient is φ = 647568.

The previous prime is 683513. The next prime is 683567. The reversal of 683563 is 365386.

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

It is a cyclic number.

It is not a de Polignac number, because 683563 - 2¹⁷ = 552491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (683567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17970 + ... + 18007.

It is an arithmetic number, because the mean of its divisors is an integer number (179890).

2⁶⁸³⁵⁶³ is an apocalyptic number.

683563 is a deficient number, since it is larger than the sum of its proper divisors (35997).

683563 is a wasteful number, since it uses less digits than its factorization.

683563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35996.

The product of its digits is 12960, while the sum is 31.

The square root of 683563 is about 826.7786886465. The cubic root of 683563 is about 88.0899132659.

The spelling of 683563 in words is "six hundred eighty-three thousand, five hundred sixty-three".