805882361 has 4 divisors (see below), whose sum is σ = 811764852. Its totient is φ = 799999872.

The previous prime is 805882327. The next prime is 805882367. The reversal of 805882361 is 163288508.

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 553707961 + 252174400 = 23531^2 + 15880^2 .

It is a cyclic number.

It is not a de Polignac number, because 805882361 - 2¹⁸ = 805620217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (805882367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2941040 + ... + 2941313.

It is an arithmetic number, because the mean of its divisors is an integer number (202941213).

Almost surely, 2^805882361 is an apocalyptic number.

It is an amenable number.

805882361 is a deficient number, since it is larger than the sum of its proper divisors (5882491).

805882361 is a wasteful number, since it uses less digits than its factorization.

805882361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5882490.

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 805882361 is about 28388.0672290313. The cubic root of 805882361 is about 930.5875044501.

The spelling of 805882361 in words is "eight hundred five million, eight hundred eighty-two thousand, three hundred sixty-one".