808090 has 8 divisors (see below), whose sum is σ = 1454580. Its totient is φ = 323232.

The previous prime is 808081. The next prime is 808097. The reversal of 808090 is 90808.

It can be written as a sum of positive squares in 2 ways, for example, as 804609 + 3481 = 897^2 + 59^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (808097) 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, 40395 + ... + 40414.

2⁸⁰⁸⁰⁹⁰ is an apocalyptic number.

808090 is a deficient number, since it is larger than the sum of its proper divisors (646490).

808090 is a wasteful number, since it uses less digits than its factorization.

808090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80816.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 808090 is about 898.9382626187. The cubic root of 808090 is about 93.1436482031.

Adding to 808090 its reverse (90808), we get a palindrome (898898).

The spelling of 808090 in words is "eight hundred eight thousand, ninety".