5660609 has 8 divisors (see below), whose sum is σ = 6015240. Its totient is φ = 5308416.

The previous prime is 5660591. The next prime is 5660623. The reversal of 5660609 is 9060665.

It can be written as a sum of positive squares in 4 ways, for example, as 384400 + 5276209 = 620^2 + 2297^2 .

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-5660609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5660209) 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, 6977 + ... + 7745.

It is an arithmetic number, because the mean of its divisors is an integer number (751905).

Almost surely, 2^5660609 is an apocalyptic number.

It is an amenable number.

5660609 is a deficient number, since it is larger than the sum of its proper divisors (354631).

5660609 is a wasteful number, since it uses less digits than its factorization.

5660609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 5660609 is about 2379.2034381280. The cubic root of 5660609 is about 178.2191573191.

The spelling of 5660609 in words is "five million, six hundred sixty thousand, six hundred nine".