800890 has 12 divisors (see below), whose sum is σ = 1446714. Its totient is φ = 319224.

The previous prime is 800879. The next prime is 800897. The reversal of 800890 is 98008.

800890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 720801 + 80089 = 849^2 + 283^2 .

It is not an unprimeable number, because it can be changed into a prime (800897) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2689 + ... + 2971.

2⁸⁰⁰⁸⁹⁰ is an apocalyptic number.

800890 is a deficient number, since it is larger than the sum of its proper divisors (645824).

800890 is an equidigital number, since it uses as much as digits as its factorization.

800890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573 (or 290 counting only the distinct ones).

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

The square root of 800890 is about 894.9245778277. The cubic root of 800890 is about 92.8661890313.

Adding to 800890 its reverse (98008), we get a palindrome (898898).

The spelling of 800890 in words is "eight hundred thousand, eight hundred ninety".