865365063 has 8 divisors (see below), whose sum is σ = 1156642800. Its totient is φ = 575498688.

The previous prime is 865365047. The next prime is 865365077. The reversal of 865365063 is 360563568.

865365063 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 865365063 - 2⁴ = 865365047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (865365463) 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, 351408 + ... + 353861.

It is an arithmetic number, because the mean of its divisors is an integer number (144580350).

Almost surely, 2^865365063 is an apocalyptic number.

865365063 is a deficient number, since it is larger than the sum of its proper divisors (291277737).

865365063 is a wasteful number, since it uses less digits than its factorization.

865365063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705681.

The product of its (nonzero) digits is 388800, while the sum is 42.

The square root of 865365063 is about 29417.0879422148. The cubic root of 865365063 is about 952.9419650363.

The spelling of 865365063 in words is "eight hundred sixty-five million, three hundred sixty-five thousand, sixty-three".