11365864 has 32 divisors (see below), whose sum is σ = 22417920. Its totient is φ = 5391936.

The previous prime is 11365859. The next prime is 11365867. The reversal of 11365864 is 46856311.

It is a happy number.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11365867) 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, 40894 + ... + 41170.

It is an arithmetic number, because the mean of its divisors is an integer number (700560).

Almost surely, 2^11365864 is an apocalyptic number.

It is an amenable number.

11365864 is a deficient number, since it is larger than the sum of its proper divisors (11052056).

11365864 is a wasteful number, since it uses less digits than its factorization.

11365864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529 (or 525 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 11365864 is about 3371.3297079936. The cubic root of 11365864 is about 224.8368463304.

The spelling of 11365864 in words is "eleven million, three hundred sixty-five thousand, eight hundred sixty-four".