8697669984 has 72 divisors (see below), whose sum is σ = 24780161952. Its totient is φ = 2893812480.

The previous prime is 8697669971. The next prime is 8697669989. The reversal of 8697669984 is 4899667968.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8697669989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127897 + ... + 183719.

It is an arithmetic number, because the mean of its divisors is an integer number (344168916).

Almost surely, 2^8697669984 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 8697669984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12390080976).

8697669984 is an abundant number, since it is smaller than the sum of its proper divisors (16082491968).

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

8697669984 is a wasteful number, since it uses less digits than its factorization.

8697669984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56380 (or 56369 counting only the distinct ones).

The product of its digits is 282175488, while the sum is 72.

The square root of 8697669984 is about 93261.2994977016. The cubic root of 8697669984 is about 2056.5264918630.

The spelling of 8697669984 in words is "eight billion, six hundred ninety-seven million, six hundred sixty-nine thousand, nine hundred eighty-four".