865761696 has 120 divisors (see below), whose sum is σ = 2559864384. Its totient is φ = 287038080.

The previous prime is 865761691. The next prime is 865761709. The reversal of 865761696 is 696167568.

865761696 is a `hidden beast` number, since 8 + 6 + 576 + 1 + 69 + 6 = 666.

865761696 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (865761691) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 546121 + ... + 547703.

Almost surely, 2^865761696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 865761696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1279932192).

865761696 is an abundant number, since it is smaller than the sum of its proper divisors (1694102688).

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

865761696 is a wasteful number, since it uses less digits than its factorization.

865761696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1816 (or 1799 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 865761696 is about 29423.8287107575. The cubic root of 865761696 is about 953.0875338508.

The spelling of 865761696 in words is "eight hundred sixty-five million, seven hundred sixty-one thousand, six hundred ninety-six".