9981264 has 40 divisors (see below), whose sum is σ = 26908992. Its totient is φ = 3182080.

The previous prime is 9981229. The next prime is 9981271. The reversal of 9981264 is 4621899.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3417 + ... + 5624.

Almost surely, 2^9981264 is an apocalyptic number.

It is an amenable number.

9981264 is an abundant number, since it is smaller than the sum of its proper divisors (16927728).

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

9981264 is a wasteful number, since it uses less digits than its factorization.

9981264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9075 (or 9069 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 9981264 is about 3159.3138495566. The cubic root of 9981264 is about 215.3088332558.

The spelling of 9981264 in words is "nine million, nine hundred eighty-one thousand, two hundred sixty-four".