9971284 has 6 divisors (see below), whose sum is σ = 17449754. Its totient is φ = 4985640.

The previous prime is 9971281. The next prime is 9971287. The reversal of 9971284 is 4821799.

It is an interprime number because it is at equal distance from previous prime (9971281) and next prime (9971287).

It can be written as a sum of positive squares in only one way, i.e., 5391684 + 4579600 = 2322^2 + 2140^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9971281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1246407 + ... + 1246414.

Almost surely, 2^9971284 is an apocalyptic number.

It is an amenable number.

9971284 is a deficient number, since it is larger than the sum of its proper divisors (7478470).

9971284 is a wasteful number, since it uses less digits than its factorization.

9971284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2492825 (or 2492823 counting only the distinct ones).

The product of its digits is 36288, while the sum is 40.

The square root of 9971284 is about 3157.7339976635. The cubic root of 9971284 is about 215.2370488030.

The spelling of 9971284 in words is "nine million, nine hundred seventy-one thousand, two hundred eighty-four".