8939680 has 48 divisors (see below), whose sum is σ = 21500640. Its totient is φ = 3511552.

The previous prime is 8939597. The next prime is 8939699. The reversal of 8939680 is 869398.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8967 + ... + 9913.

It is an arithmetic number, because the mean of its divisors is an integer number (447930).

Almost surely, 2^8939680 is an apocalyptic number.

8939680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8939680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10750320).

8939680 is an abundant number, since it is smaller than the sum of its proper divisors (12560960).

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

8939680 is a wasteful number, since it uses less digits than its factorization.

8939680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021 (or 1013 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 8939680 is about 2989.9297650614. The cubic root of 8939680 is about 207.5426341002.

The spelling of 8939680 in words is "eight million, nine hundred thirty-nine thousand, six hundred eighty".