865133363 has 8 divisors (see below), whose sum is σ = 881903376. Its totient is φ = 848380000.

The previous prime is 865133351. The next prime is 865133393. The reversal of 865133363 is 363331568.

865133363 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 a cyclic number.

It is not a de Polignac number, because 865133363 - 2⁶ = 865133299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (865133303) 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, 169793 + ... + 174813.

It is an arithmetic number, because the mean of its divisors is an integer number (110237922).

Almost surely, 2^865133363 is an apocalyptic number.

865133363 is a deficient number, since it is larger than the sum of its proper divisors (16770013).

865133363 is a wasteful number, since it uses less digits than its factorization.

865133363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8325.

The product of its digits is 116640, while the sum is 38.

The square root of 865133363 is about 29413.1494913415. The cubic root of 865133363 is about 952.8569079231.

The spelling of 865133363 in words is "eight hundred sixty-five million, one hundred thirty-three thousand, three hundred sixty-three".