989554 has 8 divisors (see below), whose sum is σ = 1503360. Its totient is φ = 488436.

The previous prime is 989533. The next prime is 989557. The reversal of 989554 is 455989.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (989557) 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 3 ways as a sum of consecutive naturals, for example, 2974 + ... + 3289.

It is an arithmetic number, because the mean of its divisors is an integer number (187920).

2⁹⁸⁹⁵⁵⁴ is an apocalyptic number.

989554 is a deficient number, since it is larger than the sum of its proper divisors (513806).

989554 is a wasteful number, since it uses less digits than its factorization.

989554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6344.

The product of its digits is 64800, while the sum is 40.

The square root of 989554 is about 994.7632884259. The cubic root of 989554 is about 99.6505804821.

The spelling of 989554 in words is "nine hundred eighty-nine thousand, five hundred fifty-four".