104120989 has 4 divisors (see below), whose sum is σ = 118995424. Its totient is φ = 89246556.

The previous prime is 104120983. The next prime is 104121013. The reversal of 104120989 is 989021401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 989021401 = 547 ⋅1808083.

It is not a de Polignac number, because 104120989 - 2³ = 104120981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104120981) 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 3 ways as a sum of consecutive naturals, for example, 7437207 + ... + 7437220.

It is an arithmetic number, because the mean of its divisors is an integer number (29748856).

Almost surely, 2^104120989 is an apocalyptic number.

It is an amenable number.

104120989 is a deficient number, since it is larger than the sum of its proper divisors (14874435).

104120989 is an equidigital number, since it uses as much as digits as its factorization.

104120989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14874434.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 104120989 is about 10203.9692767080. The cubic root of 104120989 is about 470.4492294573.

The spelling of 104120989 in words is "one hundred four million, one hundred twenty thousand, nine hundred eighty-nine".