500493 has 8 divisors (see below), whose sum is σ = 762688. Its totient is φ = 285984.

The previous prime is 500483. The next prime is 500501. The reversal of 500493 is 394005.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 500493 - 2⁸ = 500237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 23833 = 500493 / (5 + 0 + 0 + 4 + 9 + 3).

It is a Duffinian number.

500493 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11896 + ... + 11937.

It is an arithmetic number, because the mean of its divisors is an integer number (95336).

2⁵⁰⁰⁴⁹³ is an apocalyptic number.

It is an amenable number.

500493 is a deficient number, since it is larger than the sum of its proper divisors (262195).

500493 is a wasteful number, since it uses less digits than its factorization.

500493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23843.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 500493 is about 707.4552989412. The cubic root of 500493 is about 79.3961303200.

Adding to 500493 its reverse (394005), we get a palindrome (894498).

The spelling of 500493 in words is "five hundred thousand, four hundred ninety-three".