9982890 has 24 divisors (see below), whose sum is σ = 25955748. Its totient is φ = 2662080.

The previous prime is 9982883. The next prime is 9982901. The reversal of 9982890 is 982899.

It can be written as a sum of positive squares in 2 ways, for example, as 8003241 + 1979649 = 2829^2 + 1407^2 .

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

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55371 + ... + 55550.

Almost surely, 2^9982890 is an apocalyptic number.

9982890 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

9982890 is an abundant number, since it is smaller than the sum of its proper divisors (15972858).

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

9982890 is a wasteful number, since it uses less digits than its factorization.

9982890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110934 (or 110931 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 9982890 is about 3159.5711734348. The cubic root of 9982890 is about 215.3205242652.

The spelling of 9982890 in words is "nine million, nine hundred eighty-two thousand, eight hundred ninety".