490563 has 8 divisors (see below), whose sum is σ = 726800. Its totient is φ = 327024.

The previous prime is 490559. The next prime is 490571. The reversal of 490563 is 365094.

It is a happy number.

It is not a de Polignac number, because 490563 - 2² = 490559 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 18169 = 490563 / (4 + 9 + 0 + 5 + 6 + 3).

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490543) 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, 9058 + ... + 9111.

It is an arithmetic number, because the mean of its divisors is an integer number (90850).

2⁴⁹⁰⁵⁶³ is an apocalyptic number.

490563 is a deficient number, since it is larger than the sum of its proper divisors (236237).

490563 is a wasteful number, since it uses less digits than its factorization.

490563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18178 (or 18172 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 490563 is about 700.4020274100. The cubic root of 490563 is about 78.8675342436.

The spelling of 490563 in words is "four hundred ninety thousand, five hundred sixty-three".