928805 has 6 divisors (see below), whose sum is σ = 1117158. Its totient is φ = 741320.

The previous prime is 928799. The next prime is 928813. The reversal of 928805 is 508829.

It can be written as a sum of positive squares in only one way, i.e., 743044 + 185761 = 862^2 + 431^2 .

It is not a de Polignac number, because 928805 - 2¹² = 924709 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1940 + ... + 2370.

It is an arithmetic number, because the mean of its divisors is an integer number (186193).

2⁹²⁸⁸⁰⁵ is an apocalyptic number.

It is an amenable number.

928805 is a deficient number, since it is larger than the sum of its proper divisors (188353).

928805 is an frugal number, since it uses more digits than its factorization.

928805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867 (or 436 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 928805 is about 963.7452983024. The cubic root of 928805 is about 97.5681749794.

The spelling of 928805 in words is "nine hundred twenty-eight thousand, eight hundred five".