865368850 has 36 divisors (see below), whose sum is σ = 1705958334. Its totient is φ = 325463040.

The previous prime is 865368811. The next prime is 865368869. The reversal of 865368850 is 58863568.

865368850 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 9 ways, for example, as 34257609 + 831111241 = 5853^2 + 28829^2 .

It is a junction number, because it is equal to n+sod(n) for n = 865368794 and 865368803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 857146 + ... + 858154.

Almost surely, 2^865368850 is an apocalyptic number.

865368850 is a deficient number, since it is larger than the sum of its proper divisors (840589484).

865368850 is a wasteful number, since it uses less digits than its factorization.

865368850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2047 (or 1033 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 49.

The square root of 865368850 is about 29417.1523094945. The cubic root of 865368850 is about 952.9433551186.

The spelling of 865368850 in words is "eight hundred sixty-five million, three hundred sixty-eight thousand, eight hundred fifty".