94805209 has 4 divisors (see below), whose sum is σ = 100382004. Its totient is φ = 89228416.

The previous prime is 94805197. The next prime is 94805213. The reversal of 94805209 is 90250849.

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 29648025 + 65157184 = 5445^2 + 8072^2 .

It is a cyclic number.

It is not a de Polignac number, because 94805209 - 2¹¹ = 94803161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (94805219) 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, 2788372 + ... + 2788405.

It is an arithmetic number, because the mean of its divisors is an integer number (25095501).

Almost surely, 2^94805209 is an apocalyptic number.

It is an amenable number.

94805209 is a deficient number, since it is larger than the sum of its proper divisors (5576795).

94805209 is a wasteful number, since it uses less digits than its factorization.

94805209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5576794.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 94805209 is about 9736.7966498228. The cubic root of 94805209 is about 455.9781861551.

The spelling of 94805209 in words is "ninety-four million, eight hundred five thousand, two hundred nine".