805608 has 48 divisors (see below), whose sum is σ = 2227680. Its totient is φ = 262944.

The previous prime is 805589. The next prime is 805633. The reversal of 805608 is 806508.

It is a plaindrome in base 13.

It is an unprimeable number.

805608 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4741 + ... + 4907.

It is an arithmetic number, because the mean of its divisors is an integer number (46410).

2⁸⁰⁵⁶⁰⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 805608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1113840).

805608 is an abundant number, since it is smaller than the sum of its proper divisors (1422072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

805608 is a wasteful number, since it uses less digits than its factorization.

805608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 805608 is about 897.5566834468. The cubic root of 805608 is about 93.0481886927.

Subtracting 805608 from its reverse (806508), we obtain a square (900 = 30²).

The spelling of 805608 in words is "eight hundred five thousand, six hundred eight".