8687021376 has 224 divisors, whose sum is σ = 26030407680. Its totient is φ = 2533017600.

The previous prime is 8687021359. The next prime is 8687021377. The reversal of 8687021376 is 6731207868.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8687021377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18135505 + ... + 18135983.

Almost surely, 2^8687021376 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 8687021376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13015203840).

8687021376 is an abundant number, since it is smaller than the sum of its proper divisors (17343386304).

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

8687021376 is a wasteful number, since it uses less digits than its factorization.

8687021376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813 (or 803 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 48.

The square root of 8687021376 is about 93204.1918370628. The cubic root of 8687021376 is about 2055.6868766687.

It can be divided in two parts, 868702 and 1376, that added together give a palindrome (870078).

The spelling of 8687021376 in words is "eight billion, six hundred eighty-seven million, twenty-one thousand, three hundred seventy-six".