865828568 has 24 divisors (see below), whose sum is σ = 1784431740. Its totient is φ = 393558000.

The previous prime is 865828541. The next prime is 865828597.

865828568 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 446258 + ... + 448193.

Almost surely, 2^865828568 is an apocalyptic number.

865828568 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

865828568 is an abundant number, since it is smaller than the sum of its proper divisors (918603172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

865828568 is a wasteful number, since it uses less digits than its factorization.

865828568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894479 (or 894464 counting only the distinct ones).

The product of its digits is 7372800, while the sum is 56.

The square root of 865828568 is about 29424.9650467082. The cubic root of 865828568 is about 953.1120722539.

The spelling of 865828568 in words is "eight hundred sixty-five million, eight hundred twenty-eight thousand, five hundred sixty-eight".