8689000782 has 32 divisors (see below), whose sum is σ = 21666081024. Its totient is φ = 2256883200.

The previous prime is 8689000777. The next prime is 8689000861. The reversal of 8689000782 is 2870009868.

It is a happy number.

It is a super-2 number, since 2×8689000782² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9403219 + ... + 9404142.

It is an arithmetic number, because the mean of its divisors is an integer number (677065032).

Almost surely, 2^8689000782 is an apocalyptic number.

8689000782 is an abundant number, since it is smaller than the sum of its proper divisors (12977080242).

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

8689000782 is a wasteful number, since it uses less digits than its factorization.

8689000782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18807384.

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 8689000782 is about 93214.8098855541. The cubic root of 8689000782 is about 2055.8429996076.

The spelling of 8689000782 in words is "eight billion, six hundred eighty-nine million, seven hundred eighty-two", and thus it is an aban number.