863416844 has 12 divisors (see below), whose sum is σ = 1531678344. Its totient is φ = 425794464.

The previous prime is 863416819. The next prime is 863416889. The reversal of 863416844 is 448614368.

863416844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 863416795 and 863416804.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1478162 + ... + 1478745.

It is an arithmetic number, because the mean of its divisors is an integer number (127639862).

Almost surely, 2^863416844 is an apocalyptic number.

It is an amenable number.

863416844 is a deficient number, since it is larger than the sum of its proper divisors (668261500).

863416844 is a wasteful number, since it uses less digits than its factorization.

863416844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2956984 (or 2956982 counting only the distinct ones).

The product of its digits is 442368, while the sum is 44.

The square root of 863416844 is about 29383.9555540094. The cubic root of 863416844 is about 952.2262999788.

The spelling of 863416844 in words is "eight hundred sixty-three million, four hundred sixteen thousand, eight hundred forty-four".