5665009 has 8 divisors (see below), whose sum is σ = 6580928. Its totient is φ = 4775760.

The previous prime is 5664991. The next prime is 5665013. The reversal of 5665009 is 9005665.

It is a happy number.

5665009 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

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 5665009 - 2⁵ = 5664977 is a prime.

It is a Duffinian number.

5665009 is strictly pandigital in base 8.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (5665039) 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, 6207 + ... + 7060.

It is an arithmetic number, because the mean of its divisors is an integer number (822616).

Almost surely, 2^5665009 is an apocalyptic number.

It is an amenable number.

5665009 is a deficient number, since it is larger than the sum of its proper divisors (915919).

5665009 is a wasteful number, since it uses less digits than its factorization.

5665009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13335.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 5665009 is about 2380.1279377378. The cubic root of 5665009 is about 178.2653220340.

The spelling of 5665009 in words is "five million, six hundred sixty-five thousand, nine".