9867992 has 16 divisors (see below), whose sum is σ = 19476600. Its totient is φ = 4674240.

The previous prime is 9867971. The next prime is 9868009. The reversal of 9867992 is 2997689.

It is a super-2 number, since 2×9867992² = 194754532224128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9867992.

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 3 ways as a sum of consecutive naturals, for example, 32309 + ... + 32612.

Almost surely, 2^9867992 is an apocalyptic number.

It is an amenable number.

9867992 is a deficient number, since it is larger than the sum of its proper divisors (9608608).

9867992 is a wasteful number, since it uses less digits than its factorization.

9867992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64946 (or 64942 counting only the distinct ones).

The product of its digits is 489888, while the sum is 50.

The square root of 9867992 is about 3141.3360215042. The cubic root of 9867992 is about 214.4912579322.

The spelling of 9867992 in words is "nine million, eight hundred sixty-seven thousand, nine hundred ninety-two".