104820289 has 4 divisors (see below), whose sum is σ = 119794624. Its totient is φ = 89845956.

The previous prime is 104820271. The next prime is 104820301. The reversal of 104820289 is 982028401.

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: 982028401 = 23 ⋅42696887.

It is a cyclic number.

It is not a de Polignac number, because 104820289 - 2⁷ = 104820161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104820259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7487157 + ... + 7487170.

It is an arithmetic number, because the mean of its divisors is an integer number (29948656).

Almost surely, 2^104820289 is an apocalyptic number.

It is an amenable number.

104820289 is a deficient number, since it is larger than the sum of its proper divisors (14974335).

104820289 is an equidigital number, since it uses as much as digits as its factorization.

104820289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14974334.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 104820289 is about 10238.1780117363. The cubic root of 104820289 is about 471.5000946491.

The spelling of 104820289 in words is "one hundred four million, eight hundred twenty thousand, two hundred eighty-nine".