8340609 has 4 divisors (see below), whose sum is σ = 11120816. Its totient is φ = 5560404.

The previous prime is 8340593. The next prime is 8340611. The reversal of 8340609 is 9060438.

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 8340609 - 2⁴ = 8340593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8340679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1390099 + ... + 1390104.

It is an arithmetic number, because the mean of its divisors is an integer number (2780204).

Almost surely, 2^8340609 is an apocalyptic number.

It is an amenable number.

8340609 is a deficient number, since it is larger than the sum of its proper divisors (2780207).

8340609 is a wasteful number, since it uses less digits than its factorization.

8340609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2780206.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 8340609 is about 2888.0112534407. The cubic root of 8340609 is about 202.7990521218.

The spelling of 8340609 in words is "eight million, three hundred forty thousand, six hundred nine".