990548 has 24 divisors (see below), whose sum is σ = 1914528. Its totient is φ = 445536.

The previous prime is 990547. The next prime is 990559. The reversal of 990548 is 845099.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 990548.

It is not an unprimeable number, because it can be changed into a prime (990547) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2015 + ... + 2457.

It is an arithmetic number, because the mean of its divisors is an integer number (79772).

2⁹⁹⁰⁵⁴⁸ is an apocalyptic number.

It is an amenable number.

990548 is a deficient number, since it is larger than the sum of its proper divisors (923980).

990548 is a wasteful number, since it uses less digits than its factorization.

990548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503 (or 501 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 990548 is about 995.2627793704. The cubic root of 990548 is about 99.6839354176.

The spelling of 990548 in words is "nine hundred ninety thousand, five hundred forty-eight".