104439659 has 4 divisors (see below), whose sum is σ = 105761760. Its totient is φ = 103117560.

The previous prime is 104439623. The next prime is 104439679. The reversal of 104439659 is 956934401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 956934401 = 67 ⋅14282603.

It is a cyclic number.

It is not a de Polignac number, because 104439659 - 2²⁰ = 103391083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104439679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660932 + ... + 661089.

It is an arithmetic number, because the mean of its divisors is an integer number (26440440).

Almost surely, 2^104439659 is an apocalyptic number.

104439659 is a deficient number, since it is larger than the sum of its proper divisors (1322101).

104439659 is an equidigital number, since it uses as much as digits as its factorization.

104439659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322100.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 104439659 is about 10219.5723491739. The cubic root of 104439659 is about 470.9286888881.

It can be divided in two parts, 10443 and 9659, that added together give a palindrome (20102).

The spelling of 104439659 in words is "one hundred four million, four hundred thirty-nine thousand, six hundred fifty-nine".