104570809 has 4 divisors (see below), whose sum is σ = 119509504. Its totient is φ = 89632116.

The previous prime is 104570803. The next prime is 104570819. The reversal of 104570809 is 908075401.

It is a happy number.

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.

It is not a de Polignac number, because 104570809 - 2⁵ = 104570777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104570803) 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, 7469337 + ... + 7469350.

It is an arithmetic number, because the mean of its divisors is an integer number (29877376).

Almost surely, 2^104570809 is an apocalyptic number.

It is an amenable number.

104570809 is a deficient number, since it is larger than the sum of its proper divisors (14938695).

104570809 is an equidigital number, since it uses as much as digits as its factorization.

104570809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14938694.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 104570809 is about 10225.9869450337. The cubic root of 104570809 is about 471.1257291807.

The spelling of 104570809 in words is "one hundred four million, five hundred seventy thousand, eight hundred nine".