9880780 has 96 divisors (see below), whose sum is σ = 26248320. Its totient is φ = 3041280.

The previous prime is 9880747. The next prime is 9880811. The reversal of 9880780 is 870889.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110976 + ... + 111064.

It is an arithmetic number, because the mean of its divisors is an integer number (273420).

Almost surely, 2^9880780 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 9880780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13124160).

9880780 is an abundant number, since it is smaller than the sum of its proper divisors (16367540).

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

9880780 is a wasteful number, since it uses less digits than its factorization.

9880780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 9880780 is about 3143.3708021804. The cubic root of 9880780 is about 214.5838715124.

The spelling of 9880780 in words is "nine million, eight hundred eighty thousand, seven hundred eighty".