5709665 has 24 divisors (see below), whose sum is σ = 7707960. Its totient is φ = 4053504.

The previous prime is 5709659. The next prime is 5709667. The reversal of 5709665 is 5669075.

It can be written as a sum of positive squares in 12 ways, for example, as 4048144 + 1661521 = 2012^2 + 1289^2 .

It is not a de Polignac number, because 5709665 - 2⁶ = 5709601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5709667) 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 23 ways as a sum of consecutive naturals, for example, 24389 + ... + 24621.

It is an arithmetic number, because the mean of its divisors is an integer number (321165).

Almost surely, 2^5709665 is an apocalyptic number.

It is an amenable number.

5709665 is a deficient number, since it is larger than the sum of its proper divisors (1998295).

5709665 is a wasteful number, since it uses less digits than its factorization.

5709665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 38.

The square root of 5709665 is about 2389.4905314732. The cubic root of 5709665 is about 178.7325051748.

The spelling of 5709665 in words is "five million, seven hundred nine thousand, six hundred sixty-five".