993493 has 2 divisors, whose sum is σ = 993494. Its totient is φ = 993492.

The previous prime is 993481. The next prime is 993527. The reversal of 993493 is 394399.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 815409 + 178084 = 903^2 + 422^2 .

It is a cyclic number.

It is not a de Polignac number, because 993493 - 2¹³ = 985301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (993793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496746 + 496747.

It is an arithmetic number, because the mean of its divisors is an integer number (496747).

2⁹⁹³⁴⁹³ is an apocalyptic number.

It is an amenable number.

993493 is a deficient number, since it is larger than the sum of its proper divisors (1).

993493 is an equidigital number, since it uses as much as digits as its factorization.

993493 is an odious number, because the sum of its binary digits is odd.

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

The square root of 993493 is about 996.7411900789. The cubic root of 993493 is about 99.7826278358.

The spelling of 993493 in words is "nine hundred ninety-three thousand, four hundred ninety-three".