9847980 has 60 divisors (see below), whose sum is σ = 30898560. Its totient is φ = 2625696.

The previous prime is 9847969. The next prime is 9847991. The reversal of 9847980 is 897489.

It is an interprime number because it is at equal distance from previous prime (9847969) and next prime (9847991).

It is a tau number, because it is divible by the number of its divisors (60).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1420 + ... + 4659.

It is an arithmetic number, because the mean of its divisors is an integer number (514976).

Almost surely, 2^9847980 is an apocalyptic number.

9847980 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

9847980 is an abundant number, since it is smaller than the sum of its proper divisors (21050580).

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

9847980 is a wasteful number, since it uses less digits than its factorization.

9847980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6100 (or 6089 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 9847980 is about 3138.1491360354. The cubic root of 9847980 is about 214.3461658017.

The spelling of 9847980 in words is "nine million, eight hundred forty-seven thousand, nine hundred eighty".