880805 has 4 divisors (see below), whose sum is σ = 1056972. Its totient is φ = 704640.

The previous prime is 880801. The next prime is 880813. The reversal of 880805 is 508088.

880805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 289444 + 591361 = 538^2 + 769^2 .

It is not a de Polignac number, because 880805 - 2² = 880801 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (880801) 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, 88076 + ... + 88085.

It is an arithmetic number, because the mean of its divisors is an integer number (264243).

2⁸⁸⁰⁸⁰⁵ is an apocalyptic number.

It is an amenable number.

880805 is a deficient number, since it is larger than the sum of its proper divisors (176167).

880805 is a wasteful number, since it uses less digits than its factorization.

880805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176166.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 880805 is about 938.5121203266. The cubic root of 880805 is about 95.8576086372.

The spelling of 880805 in words is "eight hundred eighty thousand, eight hundred five".