9798660 has 36 divisors (see below), whose sum is σ = 29723148. Its totient is φ = 2612928.

The previous prime is 9798643. The next prime is 9798703. The reversal of 9798660 is 668979.

It can be written as a sum of positive squares in 2 ways, for example, as 2214144 + 7584516 = 1488^2 + 2754^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

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 11 ways as a sum of consecutive naturals, for example, 27039 + ... + 27398.

It is an arithmetic number, because the mean of its divisors is an integer number (825643).

Almost surely, 2^9798660 is an apocalyptic number.

9798660 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

9798660 is an abundant number, since it is smaller than the sum of its proper divisors (19924488).

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

9798660 is a wasteful number, since it uses less digits than its factorization.

9798660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54452 (or 54447 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 9798660 is about 3130.2811375338. The cubic root of 9798660 is about 213.9877420411.

The spelling of 9798660 in words is "nine million, seven hundred ninety-eight thousand, six hundred sixty".