989850 has 24 divisors (see below), whose sum is σ = 2455200. Its totient is φ = 263920.

The previous prime is 989839. The next prime is 989869. The reversal of 989850 is 58989.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 989799 and 989808.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 989850.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3150 + ... + 3449.

It is an arithmetic number, because the mean of its divisors is an integer number (102300).

2⁹⁸⁹⁸⁵⁰ is an apocalyptic number.

989850 is an abundant number, since it is smaller than the sum of its proper divisors (1465350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

989850 is a wasteful number, since it uses less digits than its factorization.

989850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6614 (or 6609 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 989850 is about 994.9120564150. The cubic root of 989850 is about 99.6605154734.

The spelling of 989850 in words is "nine hundred eighty-nine thousand, eight hundred fifty".