490663 has 2 divisors, whose sum is σ = 490664. Its totient is φ = 490662.

The previous prime is 490661. The next prime is 490697. The reversal of 490663 is 366094.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 490663 - 2¹ = 490661 is a prime.

Together with 490661, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490661) 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 as a sum of consecutive naturals, namely, 245331 + 245332.

It is an arithmetic number, because the mean of its divisors is an integer number (245332).

2⁴⁹⁰⁶⁶³ is an apocalyptic number.

490663 is a deficient number, since it is larger than the sum of its proper divisors (1).

490663 is an equidigital number, since it uses as much as digits as its factorization.

490663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 490663 is about 700.4734113441. The cubic root of 490663 is about 78.8728928606.

The spelling of 490663 in words is "four hundred ninety thousand, six hundred sixty-three".