8416609 has 4 divisors (see below), whose sum is σ = 8429616. Its totient is φ = 8403604.

The previous prime is 8416591. The next prime is 8416621. The reversal of 8416609 is 9066148.

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 a cyclic number.

It is not a de Polignac number, because 8416609 - 2⁷ = 8416481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8416669) 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, 5479 + ... + 6844.

It is an arithmetic number, because the mean of its divisors is an integer number (2107404).

Almost surely, 2^8416609 is an apocalyptic number.

It is an amenable number.

8416609 is a deficient number, since it is larger than the sum of its proper divisors (13007).

8416609 is a wasteful number, since it uses less digits than its factorization.

8416609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13006.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 8416609 is about 2901.1392589809. The cubic root of 8416609 is about 203.4131619426.

It can be divided in two parts, 8416 and 609, that added together give a square (9025 = 95²).

The spelling of 8416609 in words is "eight million, four hundred sixteen thousand, six hundred nine".