5648609 has 4 divisors (see below), whose sum is σ = 5780016. Its totient is φ = 5517204.

The previous prime is 5648597. The next prime is 5648651. The reversal of 5648609 is 9068465.

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 a de Polignac number, because none of the positive numbers 2^k-5648609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5648659) 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, 65639 + ... + 65724.

It is an arithmetic number, because the mean of its divisors is an integer number (1445004).

Almost surely, 2^5648609 is an apocalyptic number.

It is an amenable number.

5648609 is a deficient number, since it is larger than the sum of its proper divisors (131407).

5648609 is a wasteful number, since it uses less digits than its factorization.

5648609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131406.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 5648609 is about 2376.6802477405. The cubic root of 5648609 is about 178.0931318386.

The spelling of 5648609 in words is "five million, six hundred forty-eight thousand, six hundred nine".