490543 has 2 divisors, whose sum is σ = 490544. Its totient is φ = 490542.

The previous prime is 490541. The next prime is 490549. The reversal of 490543 is 345094.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 490543 - 2¹ = 490541 is a prime.

Together with 490541, it forms a pair of twin primes.

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

490543 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490541) 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, 245271 + 245272.

It is an arithmetic number, because the mean of its divisors is an integer number (245272).

2⁴⁹⁰⁵⁴³ is an apocalyptic number.

490543 is a deficient number, since it is larger than the sum of its proper divisors (1).

490543 is an equidigital number, since it uses as much as digits as its factorization.

490543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 490543 is about 700.3877497501. The cubic root of 490543 is about 78.8664624329.

The spelling of 490543 in words is "four hundred ninety thousand, five hundred forty-three".