104579309 has 4 divisors (see below), whose sum is σ = 104722716. Its totient is φ = 104435904.

The previous prime is 104579303. The next prime is 104579317. The reversal of 104579309 is 903975401.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 85192900 + 19386409 = 9230^2 + 4403^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104579309 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 (104579303) 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, 70604 + ... + 72069.

It is an arithmetic number, because the mean of its divisors is an integer number (26180679).

Almost surely, 2^104579309 is an apocalyptic number.

It is an amenable number.

104579309 is a deficient number, since it is larger than the sum of its proper divisors (143407).

104579309 is an equidigital number, since it uses as much as digits as its factorization.

104579309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143406.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 104579309 is about 10226.4025443946. The cubic root of 104579309 is about 471.1384939291.

The spelling of 104579309 in words is "one hundred four million, five hundred seventy-nine thousand, three hundred nine".