494563 has 2 divisors, whose sum is σ = 494564. Its totient is φ = 494562.

The previous prime is 494561. The next prime is 494567. The reversal of 494563 is 365494.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 494563 - 2¹ = 494561 is a prime.

Together with 494561, it forms a pair of twin primes.

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

It is not a weakly prime, because it can be changed into another prime (494561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247281 + 247282.

It is an arithmetic number, because the mean of its divisors is an integer number (247282).

2⁴⁹⁴⁵⁶³ is an apocalyptic number.

494563 is a deficient number, since it is larger than the sum of its proper divisors (1).

494563 is an equidigital number, since it uses as much as digits as its factorization.

494563 is an evil number, because the sum of its binary digits is even.

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

The square root of 494563 is about 703.2517330231. The cubic root of 494563 is about 79.0813134885.

The spelling of 494563 in words is "four hundred ninety-four thousand, five hundred sixty-three".