493993 has 2 divisors, whose sum is σ = 493994. Its totient is φ = 493992.

The previous prime is 493979. The next prime is 494023. The reversal of 493993 is 399394.

493993 is an esthetic number in base 16, because in such base its adjacent digits differ by 1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 478864 + 15129 = 692^2 + 123^2 .

It is a cyclic number.

It is not a de Polignac number, because 493993 - 2⁹ = 493481 is a prime.

493993 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (493973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246996 + 246997.

It is an arithmetic number, because the mean of its divisors is an integer number (246997).

2⁴⁹³⁹⁹³ is an apocalyptic number.

It is an amenable number.

493993 is a deficient number, since it is larger than the sum of its proper divisors (1).

493993 is an equidigital number, since it uses as much as digits as its factorization.

493993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26244, while the sum is 37.

The square root of 493993 is about 702.8463558986. The cubic root of 493993 is about 79.0509205443.

The spelling of 493993 in words is "four hundred ninety-three thousand, nine hundred ninety-three".