104280909 has 8 divisors (see below), whose sum is σ = 139216320. Its totient is φ = 69433056.

The previous prime is 104280901. The next prime is 104280923. The reversal of 104280909 is 909082401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 104280909 - 2³ = 104280901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 104280909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104280901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19057 + ... + 23910.

It is an arithmetic number, because the mean of its divisors is an integer number (17402040).

Almost surely, 2^104280909 is an apocalyptic number.

It is an amenable number.

104280909 is a deficient number, since it is larger than the sum of its proper divisors (34935411).

104280909 is an equidigital number, since it uses as much as digits as its factorization.

104280909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43779.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 104280909 is about 10211.8024363968. The cubic root of 104280909 is about 470.6899614389.

The spelling of 104280909 in words is "one hundred four million, two hundred eighty thousand, nine hundred nine".