8648909 has 8 divisors (see below), whose sum is σ = 8913912. Its totient is φ = 8386560.

The previous prime is 8648881. The next prime is 8648921. The reversal of 8648909 is 9098468.

It can be written as a sum of positive squares in 4 ways, for example, as 792100 + 7856809 = 890^2 + 2803^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8648909 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8648909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8648929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7367 + ... + 8459.

It is an arithmetic number, because the mean of its divisors is an integer number (1114239).

Almost surely, 2^8648909 is an apocalyptic number.

It is an amenable number.

8648909 is a deficient number, since it is larger than the sum of its proper divisors (265003).

8648909 is a wasteful number, since it uses less digits than its factorization.

8648909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 8648909 is about 2940.9027525575. The cubic root of 8648909 is about 205.2676179648.

The spelling of 8648909 in words is "eight million, six hundred forty-eight thousand, nine hundred nine".