805361 has 4 divisors (see below), whose sum is σ = 814500. Its totient is φ = 796224.

The previous prime is 805339. The next prime is 805369. The reversal of 805361 is 163508.

805361 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 414736 + 390625 = 644^2 + 625^2 .

It is a cyclic number.

It is not a de Polignac number, because 805361 - 2⁶ = 805297 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 805361.

It is not an unprimeable number, because it can be changed into a prime (805369) 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, 4436 + ... + 4613.

It is an arithmetic number, because the mean of its divisors is an integer number (203625).

2⁸⁰⁵³⁶¹ is an apocalyptic number.

It is an amenable number.

805361 is a deficient number, since it is larger than the sum of its proper divisors (9139).

805361 is an equidigital number, since it uses as much as digits as its factorization.

805361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9138.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 805361 is about 897.4190771317. The cubic root of 805361 is about 93.0386781731.

Adding to 805361 its reverse (163508), we get a palindrome (968869).

The spelling of 805361 in words is "eight hundred five thousand, three hundred sixty-one".