9887212 has 12 divisors (see below), whose sum is σ = 17380440. Its totient is φ = 4921376.

The previous prime is 9887179. The next prime is 9887221. The reversal of 9887212 is 2127889.

It is a super-2 number, since 2×9887212² = 195513922265888, which contains 22 as substring.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4537 + ... + 6352.

It is an arithmetic number, because the mean of its divisors is an integer number (1448370).

Almost surely, 2^9887212 is an apocalyptic number.

It is an amenable number.

9887212 is a deficient number, since it is larger than the sum of its proper divisors (7493228).

9887212 is a wasteful number, since it uses less digits than its factorization.

9887212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11120 (or 11118 counting only the distinct ones).

The product of its digits is 16128, while the sum is 37.

The square root of 9887212 is about 3144.3937412481. The cubic root of 9887212 is about 214.6304233056.

The spelling of 9887212 in words is "nine million, eight hundred eighty-seven thousand, two hundred twelve".