8726789624 has 64 divisors (see below), whose sum is σ = 19267761600. Its totient is φ = 3628145664.

The previous prime is 8726789609. The next prime is 8726789627. The reversal of 8726789624 is 4269876278.

It is a super-2 number, since 2×8726789624² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8726789627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247634 + ... + 280670.

It is an arithmetic number, because the mean of its divisors is an integer number (301058775).

Almost surely, 2^8726789624 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 8726789624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9633880800).

8726789624 is an abundant number, since it is smaller than the sum of its proper divisors (10540971976).

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

8726789624 is a wasteful number, since it uses less digits than its factorization.

8726789624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33192 (or 33188 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 59.

The square root of 8726789624 is about 93417.2876078084. The cubic root of 8726789624 is about 2058.8190063560.

The spelling of 8726789624 in words is "eight billion, seven hundred twenty-six million, seven hundred eighty-nine thousand, six hundred twenty-four".