9802980 has 72 divisors (see below), whose sum is σ = 32445504. Its totient is φ = 2376000.

The previous prime is 9802979. The next prime is 9802981. The reversal of 9802980 is 892089.

It is an interprime number because it is at equal distance from previous prime (9802979) and next prime (9802981).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9802981) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 496 + ... + 4455.

It is an arithmetic number, because the mean of its divisors is an integer number (450632).

Almost surely, 2^9802980 is an apocalyptic number.

9802980 is a gapful number since it is divisible by the number (90) 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 9802980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16222752).

9802980 is an abundant number, since it is smaller than the sum of its proper divisors (22642524).

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

9802980 is a wasteful number, since it uses less digits than its factorization.

9802980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4977 (or 4972 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 9802980 is about 3130.9710953632. The cubic root of 9802980 is about 214.0191848175.

The spelling of 9802980 in words is "nine million, eight hundred two thousand, nine hundred eighty".