9990284 has 6 divisors (see below), whose sum is σ = 17483004. Its totient is φ = 4995140.

The previous prime is 9990283. The next prime is 9990289. The reversal of 9990284 is 4820999.

It is not an unprimeable number, because it can be changed into a prime (9990283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1248782 + ... + 1248789.

It is an arithmetic number, because the mean of its divisors is an integer number (2913834).

Almost surely, 2^9990284 is an apocalyptic number.

It is an amenable number.

9990284 is a deficient number, since it is larger than the sum of its proper divisors (7492720).

9990284 is a wasteful number, since it uses less digits than its factorization.

9990284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2497575 (or 2497573 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 9990284 is about 3160.7410523483. The cubic root of 9990284 is about 215.3736714350.

The spelling of 9990284 in words is "nine million, nine hundred ninety thousand, two hundred eighty-four".