806544041 has 2 divisors, whose sum is σ = 806544042. Its totient is φ = 806544040.

The previous prime is 806544023. The next prime is 806544103. The reversal of 806544041 is 140445608.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 636502441 + 170041600 = 25229^2 + 13040^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-806544041 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 806543989 and 806544007.

It is not a weakly prime, because it can be changed into another prime (806544341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403272020 + 403272021.

It is an arithmetic number, because the mean of its divisors is an integer number (403272021).

Almost surely, 2^806544041 is an apocalyptic number.

It is an amenable number.

806544041 is a deficient number, since it is larger than the sum of its proper divisors (1).

806544041 is an equidigital number, since it uses as much as digits as its factorization.

806544041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 806544041 is about 28399.7190303003. The cubic root of 806544041 is about 930.8421250263.

Adding to 806544041 its reverse (140445608), we get a palindrome (946989649).

The spelling of 806544041 in words is "eight hundred six million, five hundred forty-four thousand, forty-one".