It is a nialpdrome in base 7.
It is a congruent number.
It is an unprimeable number.
2803530 is an apocalyptic number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
803530 is a wasteful number, since it uses less digits than its factorization.
803530 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 910.
The square root of 803530 is about 896.3983489498. The cubic root of 803530 is about 92.9681164070.
Adding to 803530 its reverse (35308), we get a palindrome (838838).
The spelling of 803530 in words is "eight hundred three thousand, five hundred thirty".