9981276 has 24 divisors (see below), whose sum is σ = 23341584. Its totient is φ = 3319680.

The previous prime is 9981271. The next prime is 9981317. The reversal of 9981276 is 6721899.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9981271) 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 7 ways as a sum of consecutive naturals, for example, 8586 + ... + 9678.

It is an arithmetic number, because the mean of its divisors is an integer number (972566).

Almost surely, 2^9981276 is an apocalyptic number.

It is an amenable number.

9981276 is an abundant number, since it is smaller than the sum of its proper divisors (13360308).

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

9981276 is a wasteful number, since it uses less digits than its factorization.

9981276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861 (or 1859 counting only the distinct ones).

The product of its digits is 54432, while the sum is 42.

The square root of 9981276 is about 3159.3157487026. The cubic root of 9981276 is about 215.3089195410.

The spelling of 9981276 in words is "nine million, nine hundred eighty-one thousand, two hundred seventy-six".