804493 has 2 divisors, whose sum is σ = 804494. Its totient is φ = 804492.

The previous prime is 804473. The next prime is 804497. The reversal of 804493 is 394408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 777924 + 26569 = 882^2 + 163^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-804493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (804497) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402246 + 402247.

It is an arithmetic number, because the mean of its divisors is an integer number (402247).

2⁸⁰⁴⁴⁹³ is an apocalyptic number.

It is an amenable number.

804493 is a deficient number, since it is larger than the sum of its proper divisors (1).

804493 is an equidigital number, since it uses as much as digits as its factorization.

804493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 804493 is about 896.9353376916. The cubic root of 804493 is about 93.0052411584.

The spelling of 804493 in words is "eight hundred four thousand, four hundred ninety-three".