990284 has 12 divisors (see below), whose sum is σ = 1835064. Its totient is φ = 465984.

The previous prime is 990281. The next prime is 990287. The reversal of 990284 is 482099.

990284 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (990281) and next prime (990287).

It is a self number, because there is not a number n which added to its sum of digits gives 990284.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 990284.

It is not an unprimeable number, because it can be changed into a prime (990281) 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, 7214 + ... + 7349.

It is an arithmetic number, because the mean of its divisors is an integer number (152922).

2⁹⁹⁰²⁸⁴ is an apocalyptic number.

It is an amenable number.

990284 is a deficient number, since it is larger than the sum of its proper divisors (844780).

990284 is a wasteful number, since it uses less digits than its factorization.

990284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14584 (or 14582 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 990284 is about 995.1301422427. The cubic root of 990284 is about 99.6750787385.

The spelling of 990284 in words is "nine hundred ninety thousand, two hundred eighty-four".