806305 has 8 divisors (see below), whose sum is σ = 975744. Its totient is φ = 639600.

The previous prime is 806297. The next prime is 806317. The reversal of 806305 is 503608.

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

It is not a de Polignac number, because 806305 - 2³ = 806297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40 + ... + 1270.

It is an arithmetic number, because the mean of its divisors is an integer number (121968).

2⁸⁰⁶³⁰⁵ is an apocalyptic number.

It is an amenable number.

806305 is a deficient number, since it is larger than the sum of its proper divisors (169439).

806305 is a wasteful number, since it uses less digits than its factorization.

806305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 806305 is about 897.9448758137. The cubic root of 806305 is about 93.0750155914.

It can be divided in two parts, 806 and 305, that added together give a palindrome (1111).

The spelling of 806305 in words is "eight hundred six thousand, three hundred five".