989933 has 8 divisors (see below), whose sum is σ = 1143168. Its totient is φ = 839664.

The previous prime is 989929. The next prime is 989939. The reversal of 989933 is 339989.

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

It is not a de Polignac number, because 989933 - 2² = 989929 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35 + ... + 1407.

It is an arithmetic number, because the mean of its divisors is an integer number (142896).

2⁹⁸⁹⁹³³ is an apocalyptic number.

It is an amenable number.

989933 is a deficient number, since it is larger than the sum of its proper divisors (153235).

989933 is a wasteful number, since it uses less digits than its factorization.

989933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483.

The product of its digits is 52488, while the sum is 41.

The square root of 989933 is about 994.9537677701. The cubic root of 989933 is about 99.6633009431.

The spelling of 989933 in words is "nine hundred eighty-nine thousand, nine hundred thirty-three".