563403 has 8 divisors (see below), whose sum is σ = 762688. Its totient is φ = 369864.

The previous prime is 563401. The next prime is 563411. The reversal of 563403 is 304365.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 563403 - 2¹ = 563401 is a prime.

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 563403.

It is not an unprimeable number, because it can be changed into a prime (563401) 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, 1201 + ... + 1602.

It is an arithmetic number, because the mean of its divisors is an integer number (95336).

2⁵⁶³⁴⁰³ is an apocalyptic number.

563403 is a deficient number, since it is larger than the sum of its proper divisors (199285).

563403 is a wasteful number, since it uses less digits than its factorization.

563403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2873.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 563403 is about 750.6017585911. The cubic root of 563403 is about 82.5923300552.

Adding to 563403 its reverse (304365), we get a palindrome (867768).

The spelling of 563403 in words is "five hundred sixty-three thousand, four hundred three".