5636865 has 32 divisors (see below), whose sum is σ = 9830016. Its totient is φ = 2741760.

The previous prime is 5636849. The next prime is 5636893. The reversal of 5636865 is 5686365.

It is not a de Polignac number, because 5636865 - 2⁴ = 5636849 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26610 + ... + 26820.

It is an arithmetic number, because the mean of its divisors is an integer number (307188).

Almost surely, 2^5636865 is an apocalyptic number.

It is an amenable number.

5636865 is a deficient number, since it is larger than the sum of its proper divisors (4193151).

5636865 is a wasteful number, since it uses less digits than its factorization.

5636865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369.

The product of its digits is 129600, while the sum is 39.

The square root of 5636865 is about 2374.2082890934. The cubic root of 5636865 is about 177.9696219673.

The spelling of 5636865 in words is "five million, six hundred thirty-six thousand, eight hundred sixty-five".