8725684320 has 72 divisors (see below), whose sum is σ = 29776402656. Its totient is φ = 2326848768.

The previous prime is 8725684307. The next prime is 8725684349. The reversal of 8725684320 is 234865278.

8725684320 is a `hidden beast` number, since 87 + 2 + 568 + 4 + 3 + 2 + 0 = 666.

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

It is a super-2 number, since 2×8725684320² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3028312 + ... + 3031191.

It is an arithmetic number, because the mean of its divisors is an integer number (413561148).

Almost surely, 2^8725684320 is an apocalyptic number.

8725684320 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8725684320 is an abundant number, since it is smaller than the sum of its proper divisors (21050718336).

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

8725684320 is a wasteful number, since it uses less digits than its factorization.

8725684320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6059524 (or 6059513 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 8725684320 is about 93411.3714705014. The cubic root of 8725684320 is about 2058.7320817991.

The spelling of 8725684320 in words is "eight billion, seven hundred twenty-five million, six hundred eighty-four thousand, three hundred twenty".