8608640331 has 8 divisors (see below), whose sum is σ = 11506812624. Its totient is φ = 5724780800.

The previous prime is 8608640329. The next prime is 8608640333. The reversal of 8608640331 is 1330468068.

8608640331 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (8608640329) and next prime (8608640333).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8608640331 - 2¹ = 8608640329 is a prime.

It is a super-2 number, since 2×8608640331² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8608640331.

It is not an unprimeable number, because it can be changed into a prime (8608640333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3576786 + ... + 3579191.

It is an arithmetic number, because the mean of its divisors is an integer number (1438351578).

Almost surely, 2^8608640331 is an apocalyptic number.

8608640331 is a deficient number, since it is larger than the sum of its proper divisors (2898172293).

8608640331 is a wasteful number, since it uses less digits than its factorization.

8608640331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7156381.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 8608640331 is about 92782.7588024844. The cubic root of 8608640331 is about 2049.4855207852.

The spelling of 8608640331 in words is "eight billion, six hundred eight million, six hundred forty thousand, three hundred thirty-one".