805306 has 8 divisors (see below), whose sum is σ = 1213344. Its totient is φ = 400860.

The previous prime is 805297. The next prime is 805309. The reversal of 805306 is 603508.

805306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (805309) 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, 240 + ... + 1291.

It is an arithmetic number, because the mean of its divisors is an integer number (151668).

2⁸⁰⁵³⁰⁶ is an apocalyptic number.

805306 is a deficient number, since it is larger than the sum of its proper divisors (408038).

805306 is a wasteful number, since it uses less digits than its factorization.

805306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796.

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

The square root of 805306 is about 897.3884331771. The cubic root of 805306 is about 93.0365601814.

It can be divided in two parts, 805 and 306, that added together give a palindrome (1111).

The spelling of 805306 in words is "eight hundred five thousand, three hundred six".