5660809 has 8 divisors (see below), whose sum is σ = 7057728. Its totient is φ = 4410960.

The previous prime is 5660807. The next prime is 5660833. The reversal of 5660809 is 9080665.

5660809 = 110² + 111² + ... + 263².

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

It is a cyclic number.

It is not a de Polignac number, because 5660809 - 2¹ = 5660807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5660801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36682 + ... + 36835.

It is an arithmetic number, because the mean of its divisors is an integer number (882216).

Almost surely, 2^5660809 is an apocalyptic number.

It is an amenable number.

5660809 is a deficient number, since it is larger than the sum of its proper divisors (1396919).

5660809 is a wasteful number, since it uses less digits than its factorization.

5660809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73535.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 5660809 is about 2379.2454686308. The cubic root of 5660809 is about 178.2212562341.

The spelling of 5660809 in words is "five million, six hundred sixty thousand, eight hundred nine".