800881 has 4 divisors (see below), whose sum is σ = 802672. Its totient is φ = 799092.

The previous prime is 800879. The next prime is 800897. The reversal of 800881 is 188008.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 800881 - 2¹ = 800879 is a prime.

It is a super-2 number, since 2×800881² = 1282820752322, which contains 22 as substring.

It is a Duffinian number.

800881 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (800801) 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, 430 + ... + 1336.

It is an arithmetic number, because the mean of its divisors is an integer number (200668).

2⁸⁰⁰⁸⁸¹ is an apocalyptic number.

It is an amenable number.

800881 is a deficient number, since it is larger than the sum of its proper divisors (1791).

800881 is an equidigital number, since it uses as much as digits as its factorization.

800881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790.

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 800881 is about 894.9195494568. The cubic root of 800881 is about 92.8658411688.

Adding to 800881 its reverse (188008), we get a palindrome (988889).

It can be divided in two parts, 80088 and 1, that added together give a square (80089 = 283²).

The spelling of 800881 in words is "eight hundred thousand, eight hundred eighty-one".