9999884 has 12 divisors (see below), whose sum is σ = 17761464. Its totient is φ = 4925184.

The previous prime is 9999883. The next prime is 9999889. The reversal of 9999884 is 4889999.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (9999883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18389 + ... + 18924.

It is an arithmetic number, because the mean of its divisors is an integer number (1480122).

Almost surely, 2^9999884 is an apocalyptic number.

It is an amenable number.

9999884 is a deficient number, since it is larger than the sum of its proper divisors (7761580).

9999884 is a wasteful number, since it uses less digits than its factorization.

9999884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37384 (or 37382 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 56.

The square root of 9999884 is about 3162.2593189048. The cubic root of 9999884 is about 215.4426359519.

The spelling of 9999884 in words is "nine million, nine hundred ninety-nine thousand, eight hundred eighty-four".