8109605 has 16 divisors (see below), whose sum is σ = 11176704. Its totient is φ = 5533440.

The previous prime is 8109581. The next prime is 8109617. The reversal of 8109605 is 5069018.

It is not a de Polignac number, because 8109605 - 2¹² = 8105509 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8765 + ... + 9645.

It is an arithmetic number, because the mean of its divisors is an integer number (698544).

Almost surely, 2^8109605 is an apocalyptic number.

It is an amenable number.

8109605 is a deficient number, since it is larger than the sum of its proper divisors (3067099).

8109605 is a wasteful number, since it uses less digits than its factorization.

8109605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 8109605 is about 2847.7368207052. The cubic root of 8109605 is about 200.9092351929.

The spelling of 8109605 in words is "eight million, one hundred nine thousand, six hundred five".