8364609 has 18 divisors (see below), whose sum is σ = 13282178. Its totient is φ = 5068800.

The previous prime is 8364593. The next prime is 8364611. The reversal of 8364609 is 9064638.

8364609 is a `hidden beast` number, since 8 + 3 + 646 + 0 + 9 = 666.

8364609 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7683984 + 680625 = 2772^2 + 825^2 .

It is not a de Polignac number, because 8364609 - 2⁴ = 8364593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8364649) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2752 + ... + 4929.

Almost surely, 2^8364609 is an apocalyptic number.

It is an amenable number.

8364609 is a deficient number, since it is larger than the sum of its proper divisors (4917569).

8364609 is a wasteful number, since it uses less digits than its factorization.

8364609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7709 (or 7695 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 8364609 is about 2892.1633771279. The cubic root of 8364609 is about 202.9933831067.

It can be divided in two parts, 836 and 4609, that added together give a palindrome (5445).

The spelling of 8364609 in words is "eight million, three hundred sixty-four thousand, six hundred nine".