805493 has 4 divisors (see below), whose sum is σ = 867468. Its totient is φ = 743520.

The previous prime is 805487. The next prime is 805499. The reversal of 805493 is 394508.

805493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (805487) and next prime (805499).

It can be written as a sum of positive squares in 2 ways, for example, as 418609 + 386884 = 647^2 + 622^2 .

It is a cyclic number.

It is not a de Polignac number, because 805493 - 2¹⁴ = 789109 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 (805499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30968 + ... + 30993.

It is an arithmetic number, because the mean of its divisors is an integer number (216867).

2⁸⁰⁵⁴⁹³ is an apocalyptic number.

It is an amenable number.

805493 is a deficient number, since it is larger than the sum of its proper divisors (61975).

805493 is a wasteful number, since it uses less digits than its factorization.

805493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61974.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 805493 is about 897.4926183540. The cubic root of 805493 is about 93.0437609598.

The spelling of 805493 in words is "eight hundred five thousand, four hundred ninety-three".