864447041 has 2 divisors, whose sum is σ = 864447042. Its totient is φ = 864447040.

The previous prime is 864447037. The next prime is 864447061. The reversal of 864447041 is 140744468.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 727650625 + 136796416 = 26975^2 + 11696^2 .

It is a cyclic number.

It is not a de Polignac number, because 864447041 - 2² = 864447037 is a prime.

It is a Chen prime.

It is equal to p_44283935 and since 864447041 and 44283935 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 864446986 and 864447004.

It is not a weakly prime, because it can be changed into another prime (864447011) 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 as a sum of consecutive naturals, namely, 432223520 + 432223521.

It is an arithmetic number, because the mean of its divisors is an integer number (432223521).

Almost surely, 2^864447041 is an apocalyptic number.

It is an amenable number.

864447041 is a deficient number, since it is larger than the sum of its proper divisors (1).

864447041 is an equidigital number, since it uses as much as digits as its factorization.

864447041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86016, while the sum is 38.

The square root of 864447041 is about 29401.4802518513. The cubic root of 864447041 is about 952.6048698380.

The spelling of 864447041 in words is "eight hundred sixty-four million, four hundred forty-seven thousand, forty-one".