563949 has 8 divisors (see below), whose sum is σ = 835520. Its totient is φ = 375948.

The previous prime is 563947. The next prime is 563971. The reversal of 563949 is 949365.

563949 is a `hidden beast` number, since 563 + 94 + 9 = 666.

It is not a de Polignac number, because 563949 - 2¹ = 563947 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563947) 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 7 ways as a sum of consecutive naturals, for example, 10417 + ... + 10470.

It is an arithmetic number, because the mean of its divisors is an integer number (104440).

2⁵⁶³⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

563949 is a deficient number, since it is larger than the sum of its proper divisors (271571).

563949 is a wasteful number, since it uses less digits than its factorization.

563949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20896 (or 20890 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 563949 is about 750.9653786960. The cubic root of 563949 is about 82.6190018175.

It can be divided in two parts, 56 and 3949, that added together give a triangular number (4005 = T₈₉).

The spelling of 563949 in words is "five hundred sixty-three thousand, nine hundred forty-nine".