9816980 has 12 divisors (see below), whose sum is σ = 20615700. Its totient is φ = 3926784.

The previous prime is 9816971. The next prime is 9816997. The reversal of 9816980 is 896189.

9816980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2353156 + 7463824 = 1534^2 + 2732^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245405 + ... + 245444.

It is an arithmetic number, because the mean of its divisors is an integer number (1717975).

Almost surely, 2^9816980 is an apocalyptic number.

It is an amenable number.

9816980 is an abundant number, since it is smaller than the sum of its proper divisors (10798720).

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

9816980 is a wasteful number, since it uses less digits than its factorization.

9816980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490858 (or 490856 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 9816980 is about 3133.2060257825. The cubic root of 9816980 is about 214.1210192718.

The spelling of 9816980 in words is "nine million, eight hundred sixteen thousand, nine hundred eighty".