104443989 has 16 divisors (see below), whose sum is σ = 156492672. Its totient is φ = 61478208.

The previous prime is 104443981. The next prime is 104444009. The reversal of 104443989 is 989344401.

It is not a de Polignac number, because 104443989 - 2³ = 104443981 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 104443989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104443981) 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 15 ways as a sum of consecutive naturals, for example, 57322 + ... + 59115.

It is an arithmetic number, because the mean of its divisors is an integer number (9780792).

Almost surely, 2^104443989 is an apocalyptic number.

It is an amenable number.

104443989 is a deficient number, since it is larger than the sum of its proper divisors (52048683).

104443989 is a wasteful number, since it uses less digits than its factorization.

104443989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116476.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 104443989 is about 10219.7841953732. The cubic root of 104443989 is about 470.9351969300.

The spelling of 104443989 in words is "one hundred four million, four hundred forty-three thousand, nine hundred eighty-nine".