805820241 has 8 divisors (see below), whose sum is σ = 1081271104. Its totient is φ = 533791440.

The previous prime is 805820221. The next prime is 805820243. The reversal of 805820241 is 142028508.

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

It is not a de Polignac number, because 805820241 - 2⁶ = 805820177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 805820199 and 805820208.

It is not an unprimeable number, because it can be changed into a prime (805820243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 854965 + ... + 855906.

It is an arithmetic number, because the mean of its divisors is an integer number (135158888).

Almost surely, 2^805820241 is an apocalyptic number.

It is an amenable number.

805820241 is a deficient number, since it is larger than the sum of its proper divisors (275450863).

805820241 is a wasteful number, since it uses less digits than its factorization.

805820241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711031.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 805820241 is about 28386.9730862591. The cubic root of 805820241 is about 930.5635929447.

Adding to 805820241 its reverse (142028508), we get a palindrome (947848749).

The spelling of 805820241 in words is "eight hundred five million, eight hundred twenty thousand, two hundred forty-one".