500000493 has 4 divisors (see below), whose sum is σ = 666667328. Its totient is φ = 333333660.

The previous prime is 500000491. The next prime is 500000507. The reversal of 500000493 is 394000005.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 500000493 - 2¹ = 500000491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500000491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83333413 + ... + 83333418.

It is an arithmetic number, because the mean of its divisors is an integer number (166666832).

Almost surely, 2^500000493 is an apocalyptic number.

It is an amenable number.

500000493 is a deficient number, since it is larger than the sum of its proper divisors (166666835).

500000493 is a wasteful number, since it uses less digits than its factorization.

500000493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166666834.

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

The square root of 500000493 is about 22360.6907988103. The cubic root of 500000493 is about 793.7007868469.

Adding to 500000493 its reverse (394000005), we get a palindrome (894000498).

The spelling of 500000493 in words is "five hundred million, four hundred ninety-three", and thus it is an aban number.