8494609 has 4 divisors (see below), whose sum is σ = 8516404. Its totient is φ = 8472816.

The previous prime is 8494597. The next prime is 8494627. The reversal of 8494609 is 9064948.

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 7398400 + 1096209 = 2720^2 + 1047^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8494609 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8494669) 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, 10302 + ... + 11095.

It is an arithmetic number, because the mean of its divisors is an integer number (2129101).

Almost surely, 2^8494609 is an apocalyptic number.

It is an amenable number.

8494609 is a deficient number, since it is larger than the sum of its proper divisors (21795).

8494609 is a wasteful number, since it uses less digits than its factorization.

8494609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21794.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 8494609 is about 2914.5512519083. The cubic root of 8494609 is about 204.0396004758.

The spelling of 8494609 in words is "eight million, four hundred ninety-four thousand, six hundred nine".