494503 has 4 divisors (see below), whose sum is σ = 499408. Its totient is φ = 489600.

The previous prime is 494497. The next prime is 494519. The reversal of 494503 is 305494.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 494503 - 2⁵ = 494471 is a prime.

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 (494563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2298 + ... + 2503.

It is an arithmetic number, because the mean of its divisors is an integer number (124852).

2⁴⁹⁴⁵⁰³ is an apocalyptic number.

494503 is a deficient number, since it is larger than the sum of its proper divisors (4905).

494503 is a wasteful number, since it uses less digits than its factorization.

494503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4904.

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

The square root of 494503 is about 703.2090727515. The cubic root of 494503 is about 79.0781153313.

Adding to 494503 its reverse (305494), we get a palindrome (799997).

The spelling of 494503 in words is "four hundred ninety-four thousand, five hundred three".