493566 has 8 divisors (see below), whose sum is σ = 987144. Its totient is φ = 164520.

The previous prime is 493541. The next prime is 493567. The reversal of 493566 is 665394.

It is a happy number.

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

493566 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493567) by changing a digit.

493566 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41125 + ... + 41136.

It is an arithmetic number, because the mean of its divisors is an integer number (123393).

2⁴⁹³⁵⁶⁶ is an apocalyptic number.

493566 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

493566 is a wasteful number, since it uses less digits than its factorization.

493566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82266.

The product of its digits is 19440, while the sum is 33.

The square root of 493566 is about 702.5425254033. The cubic root of 493566 is about 79.0281371759.

The spelling of 493566 in words is "four hundred ninety-three thousand, five hundred sixty-six".