104727209 has 4 divisors (see below), whose sum is σ = 105176916. Its totient is φ = 104277504.

The previous prime is 104727199. The next prime is 104727223. The reversal of 104727209 is 902727401.

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 67699984 + 37027225 = 8228^2 + 6085^2 .

It is a cyclic number.

It is not a de Polignac number, because 104727209 - 2⁴ = 104727193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104727229) 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, 224504 + ... + 224969.

It is an arithmetic number, because the mean of its divisors is an integer number (26294229).

Almost surely, 2^104727209 is an apocalyptic number.

It is an amenable number.

104727209 is a deficient number, since it is larger than the sum of its proper divisors (449707).

104727209 is an equidigital number, since it uses as much as digits as its factorization.

104727209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449706.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 104727209 is about 10233.6312714500. The cubic root of 104727209 is about 471.3604899148.

The spelling of 104727209 in words is "one hundred four million, seven hundred twenty-seven thousand, two hundred nine".