104020447 has 4 divisors (see below), whose sum is σ = 106233696. Its totient is φ = 101807200.

The previous prime is 104020439. The next prime is 104020451. The reversal of 104020447 is 744020401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 104020447 - 2³ = 104020439 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 (104020457) 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, 1106554 + ... + 1106647.

It is an arithmetic number, because the mean of its divisors is an integer number (26558424).

Almost surely, 2^104020447 is an apocalyptic number.

104020447 is a deficient number, since it is larger than the sum of its proper divisors (2213249).

104020447 is an equidigital number, since it uses as much as digits as its factorization.

104020447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2213248.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 104020447 is about 10199.0414745700. The cubic root of 104020447 is about 470.2977545890.

Adding to 104020447 its reverse (744020401), we get a palindrome (848040848).

The spelling of 104020447 in words is "one hundred four million, twenty thousand, four hundred forty-seven".